23) Whether a truck comes to a stop by crashing into a haystack or a brick wall, the stopping force is
Answers
Whether a truck comes to a stop by crashing into a haystack or a brick wall, the stopping force is the same. This statement is false.
The statement is false because the stopping force is different when the truck comes to a stop by crashing into a haystack and when it crashes into a brick wall. The difference is due to the collision time.
The stopping force is the force that brings the truck to a stop. When the truck collides with a haystack, it crushes the hay and slows down gradually, taking more time. This increases the collision time. Therefore, the stopping force is less because the force is applied for a longer time.
However, when the truck collides with a brick wall, it comes to a stop immediately, in a shorter time. This reduces the collision time. Therefore, the stopping force is more because the force is applied for a shorter time.
In other words, the stopping force is the force that brings the truck to a stop, and it depends on the mass of the truck and the time over which the force is applied. A longer time means less stopping force, while a shorter time means more stopping force.
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Related Questions
A. It Implies That M Is Finitely Generated. B. It Implies That M Has Nonzero Elements Of Nonzero Order. C. When Every Non-Null Element Has Null . D. In The Case That The Ring R Is A Body. E. None Of The Above Alternatives Gives A
Which of the following alternatives give a true statement. Justify your answer.
A modulus M over a ring R has a finite basis:
a. It implies that M is finitely generated.
b. It implies that M has nonzero elements of nonzero order.
C. When every non-null element has null .
d. in the case that the ring R is a body.
e. None of the above alternatives gives a true statement.
Which of the following statements are true?
a. If a subset of a module generates that whole module, then the subset cannot be
empty.
b. Every submodule S of a module M verifies the inequality C. Two different subsets of M have to generate two different submodules of M.
d. If S generates a submodule N of the module M, then contains S.
e. Neither statement is true.
Answers
The correct answer is e. None of the above alternatives gives a true statement. None of the statements in options a, b, c, and d are true when it comes to a modulus M over a ring R having a finite basis.
When a modulus M can be formed entirely from a finite set of elements, the modulus M is said to be finitely generated. M's finite basis does not, however, automatically imply that M is finitely generated. A basis is a set of linearly independent elements, and it might not be enough to produce all of the components of the modulus.
According to the assertion in option b, M must include nonzero items of nonzero order if it has a finite basis. This is untrue, though. The smallest positive number k, such that the element raised to the power of k equals the identity element, is referred to as the order of an element.
According to option c, every non-null element in a modulus with a finite basis has a null. Nevertheless, this claim is likewise untrue. It is possible for a modulus with a finite basis to have non-null elements without a null element.
According to option d, a ring R is a body, or a field, and only then can a modulus have a finite basis. However, this assertion is also untrue. Even though the ring R is not a field, a modulus can nonetheless have a finite basis. None of the given alternatives provides a true statement about a modulus M over a ring R having a finite basis.
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Fy is the reaction force from Plate Y. What Statement best describes the action and reaction forces on the plates? Tectonic plates
Answers
Answer:
According to Newton's third law of motion, the reaction force is equal to the action force.
Explanation:
Newton's third law of motion states that for every action there is an equal and opposite reaction. This means that if one object exerts a force on a second object, the second object exerts an equal force in the opposite direction. When Plate X pushes on Plate Y with the action force (Fx), Plate Y must push back with an equal force (Fy).
Therefore, the best explanation is that according to Newton's third law of motion, the reaction force is equal to the action force.
For every action, there has equal and opposite reaction - this statement best describes the action and reaction forces on the plates.
What is Newton's 3rd law of motion?As a result of this interaction, there are two forces: one from plate X and one from plate Y. The third law of motion of Newton deals with these two forces, which are referred to as action and reaction forces. Newton's third law is officially expressed as follows: There is an equal and opposite reaction to every action.
The implication of the statement is that there are always two forces acting on the two interacting objects. The force acting on the first object is equal in size to the force acting on the second. The force acting on the first object is acting in the opposite direction to the force acting on the second object. Force pairs—equal and opposing action-reaction force pairs—always exist in pairs.
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the forces between polar molecules is known as __________.
Answers
The forces between polar molecules is known as dipole-dipole forces.
Dipole-dipole forces are a form of intermolecular force that occurs between molecules that have permanent dipoles as a result of the unequal sharing of electrons. They are usually found in polar molecules that are covalently bonded.
A permanent dipole is a separation of electric charge that exists across two adjacent atoms or atoms. These dipoles exist when atoms in a covalent bond share electrons in an unequal manner, resulting in a partially positive end and a partially negative end. This partial charge imbalance causes the neighboring molecules to experience a force that causes them to line up in a specific orientation. This kind of attraction is known as dipole-dipole forces.
A polar molecule is a molecule with a net dipole moment greater than zero due to the asymmetrical arrangement of polar bonds, or due to the presence of lone pair electrons on the central atom. Polar molecules are molecules that have partial charges or regions with varying charge densities. The electrons in polar molecules are not evenly distributed throughout the molecule, resulting in a region of partial negative charge and a region of partial positive charge.
Intermolecular forces are the forces that hold two molecules together. The forces that occur between molecules are referred to as intermolecular forces. They are usually much weaker than chemical bonds, which hold atoms within a molecule together.
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why is the pressure in the bottom of the pacific ocean much bigger than near the surface
Answers
Answer:
increase in hydrostatic pressure
Explanation:
he force per unit area exerted by a liquid on an object. The deeper you go under the sea, the greater the pressure of the water pushing down on you. For every 33 feet (10.06 meters) you go down, the pressure increases by one atmosphere .
Brainliest pls
n this activity, you will answer questions based on these two scenarios. Scenario 1 It’s the week before final exams, and Alicia is looking forward to graduation. However, she knows the week will be stressful. In addition to studying hard for her exams, her manager at work called and asked her to work an additional 15 hours. Her softball coach scheduled double practices to prepare for state finals. Her aunt has asked her to babysit her niece a few hours each night. On top of all this, she wants to spend some much-needed quality time with her friends. Alicia wishes there were 86 hours in a day instead of 24. Scenario 2 A small nation's economy depends on oil. The country’s earnings have declined greatly because of a recent drop in oil prices. The government uses these earnings to provide free education to all citizens under the age of 25. The country also uses its earnings to provide free health care and to provide benefits for retirees. The government also uses part of its earnings to help a neighboring country recover from a natural disaster. The president of the country imagines how much he could help his citizens if there weren’t any budget restrictions. Part A What do Alicia and the president have in common?
Answers
Answer: Alicia and the president do not have enough of a particular resource. Alicia doesn’t have enough time, and the president doesn’t have enough money.
Explanation: This is Plato's sample answer.
two astronauts, initially at rest in free space, pull on either end of a rope. astronaut alex played football in high school and is stronger gthan astronaut bob, whose hobby was chess. the maximum force with which alex can pull fa, is larger that the maximum force with whcih bob can fb. their masses are ma and mb, and the mass of the rope mr, is negligilbe. find their motion if each pulls on the rope as hard as he can
Answers
The motion of the system will depend on the difference between the masses of the two astronauts.
What is the motion of the two astronauts?
When the two astronauts pull on the rope, the net force acting on the system consisting of the two astronauts and the rope will be equal to the difference between their forces.
Based on Newton's second law of motion;
Fnet = ma
where;
m is the total mass of the system,m = ma + mb
where;
ma and mb are the masses of the two astronautsSince the rope has a negligible mass, we can simplify this to:
Fnet = ma + mb
Now, we can substitute the forces exerted by the astronauts for Fnet:
Fnet = fa - fb
fa - fb = ma + mb
Since the astronauts are pulling as hard as they can, fa is equal to the maximum force that Alex can exert, and fb is equal to the maximum force that Bob can exert.
So, the motion of the system will depend on the difference between their maximum forces.
If fa > fb, then the net force will be in the direction of Alex, and the system will accelerate in that direction. If fa < fb, then the net force will be in the direction of Bob, and the system will accelerate in that direction.If fa = fb, then there will be no net force, and the system will remain at rest.Learn more about motion of astronauts here: https://brainly.com/question/5573877
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Leilani Hendricks
4/4/23
Test Name: T-Science-Gr5-T5-PBT (2022-2023)
Test ID: 2710825
1. Sophia rides her bike to and from school. Sophia's bike has a special tape that reflects energy from
the sun to make it easier for cars to see her. She also uses a bell to let other bikers know if she is going
to move pass them. Which of the following form of energy does Sophia not use when biking?
A. mechanical energy
B. sound energy
C. light energy
D. electrical energy
Answers
D. Electrical energy. Sophia does not use electrical energy when biking. The special tape on her bike reflects light energy from the sun to make it easier for cars to see her.
What is Light Energy?
Light energy is a form of electromagnetic radiation that travels through space as waves, and can be perceived by the human eye as colors of the visible spectrum. Light energy can also exist as particles called photons. Light energy is able to travel through transparent or translucent substances, such as air, water, and glass. Light energy plays a crucial role in many natural processes, such as photosynthesis, vision, and the heating of the Earth's atmosphere. It is also widely used by humans in applications such as lighting, telecommunications, and photography.
She uses a bell, which creates sound energy, to let other bikers know if she is going to move past them. The mechanical energy is used by Sophia to pedal the bike and move it forward.
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What do you think Jose’s grandmother meant by saying that the bread was too dense? What other things can you think of that are “dense”?
Answers
Answer:
What I think that Jose's grandmother meant by saying that the bread was too dense is that she thinks the bread is too heavy or it can even mean to be too compacted in substance. The matter in the bread are close together and not spread out like in the air, when the matter in the air starts to come closer together it starts to make fog, because it is becoming more dense. Some more things that are heavy or dense are things like a big stereo speaker, an anvil, or even a big piece of wood used to build.
Explanation:
The length of a road is 35.5cm what will be the length in meters?
Answers
안녕하세요
answer is 355 meters ...
Answer:
0.355m
Explanation:
To convert from cm to m, divide by 100
35.5÷100=0.355m
A construction worker holds a heavy tool box. How much work is done by the worker?
Answers
Answer:
zero work is done by the worker
Which of the following is an example of the Doppler effect? A water bug on the surface of a pond is producing small ripples in the water. The bug is not moving. A police car with its siren on is driving towards you, and you perceive the pitch of the siren to increase. Scientists measure the speed of light and find that it is constant. The gravitational pull of two objects on each other
Answers
Answer:
A police car with its siren on is driving towards you, and you perceive the pitch of the siren to increase.
Explanation:
In Physics, Doppler effect can be defined as the change in frequency of a wave with respect to an observer in motion and moving relative to the source of the wave.
Simply stated, Doppler effect is the change in wave frequency as a result of the relative motion existing between a wave source and its observer.
The term "Doppler effect" was named after an Austrian mathematician and physicist known as Christian Johann Doppler while studying the starlight in relation to the movement of stars.
The phenomenon of Doppler effects is generally applicable to both sound and light.
An example of the Doppler effect is a police car with its siren on is driving towards you, and you perceive the pitch of the siren to increase. This is so because when a sound object moves towards you, its sound waves frequency increases, thereby causing a higher pitch. However, if the sound object is moving away from the observer, it's sound waves frequency decreases and thus resulting in a lower pitch.
Other fields were the Doppler effects are applied are; astronomy, flow management, vibration measurement, radars, satellite communications etc.
Answer:
A police car with its siren on is driving towards you, and you perceive the pitch of the siren to increase.
Explanation:
This should be the correct answer.
An alpha particle, which is a helium nucleus, has a mass of 6.64x10^-27 kg. It is traveling horizontally at 42.3 km/s when it enters a uniform, vertical 1.60 T magnetic field. What is the diameter of the path followed by the particle?
Answers
Given:
• Mass, m = 6.64 x 10⁻²⁷ kg
,• Velocity = 42.3 km/s
,• Magnetic field = 1.60 T
Let's find the diameter of the path followed by the particle.
To find the path, apply the formula to first find the radius:
\(R=\frac{mv}{QB}\)Where:
m = 6.64 x 10⁻²⁷ kg
v is the velocity in m/s = 42.3 x 1000 = 42300 m/s
Q = 1.6 x 10⁻¹⁹ x 2
B = 1.60 T
Plug in values and solve for the radius, r:
\(\begin{gathered} R=\frac{6.64*10^{-27}*42300}{(3.2*10^{-19})*1.60} \\ \\ R=5.48578*10^{-4}\text{ m} \end{gathered}\)Therefore, the diameter will be:
\(\text{ diameter = radius x 2 = \lparen5.48578*10}^{-4})*2=0.00101\text{ m}\approx1.01\text{ mm}\)Therefore, the diameter of the path followed by the particle is 1.01 mm.
ANSWER:
1.01 mm
A 1.0 kg ball is thrown into the air with an initial velocity of 30 m/s. What is the kinetic energy of the ball?
Answers
Answer:
If this helps, to work out the kinetic energy the formula is K (stands for kinetic energy) = 1/2 (half of) mass and velocity. So the answer is 450 joules.
Explanation:
earths mass is aproximately 81 times the mass of the moon. if earth exerts a gravtational force of magnitude f on the moon, the magnitude of the gravitational force of the moon on earth is
Answers
The magnitude of the gravitational force of the Moon on Earth is also 1.99 x 10^20 N. The gravitational force of the moon on Earth.
The magnitude of the gravitational force of the moon on Earth is the same as the magnitude of the gravitational force of Earth on the moon, as stated by Newton's third law. However, let's look at how the gravitational force between these two celestial objects is calculated.
In general, the gravitational force between two objects can be calculated using the formula: F = (Gm1m2)/r^2 where G is the gravitational constant, m1 and m2 are the masses of the two objects, and r is the distance between their centers of mass.
The mass of the Earth is approximately 81 times greater than that of the Moon. The mass of the Earth is about 5.97 x 10^24 kg, while the mass of the Moon is approximately 7.34 x 10^22 kg.
As a result, we may use these values to calculate the magnitude of the gravitational force exerted by Earth on the Moon.
Assume that the distance between the centers of mass of Earth and Moon is 384,400 km.
Furthermore, G has a value of 6.67 x 10^-11 Nm^2/kg^2.
Using the formula: F = (Gm1m2)/r^2
we get: F = (6.67 x 10^-11 Nm^2/kg^2)(5.97 x 10^24 kg)(7.34 x 10^22 kg)/(384,400,000 m)^2
= 1.99 x 10^20 N
The magnitude of the gravitational force of Earth on the Moon is about 1.99 x 10^20 N.
Again, due to Newton's third law, the magnitude of the gravitational force of the Moon on Earth is also 1.99 x 10^20 N.
Therefore, this is our final answer.
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Match each situation
Answers
C: is losing kinetic energy and gaining potential energy
B: kinetic energy is at its highest
D: is loosing potential energy and gaining kinetic energy
Using the Position vs. time Graph below, showing the motion of two cyclists (Cyclist A and Cyclist B) answer the following question.Do the two cyclists have the same velocity at t = 3 seconds?
Answers
Using the information depicted on the distance - time graph, the slope of the graph is could be used to infer the velocity of each cyclist. Hence, cyclist A and B do not have the same velocity at 3 seconds.
The steepness of slope on the distance - time graph gives the velocity of the cyclist. At time, t = 0 ; the cyclist A has a greater slope than cyclist B. Hence, the velocity of the cyclists is different.
Therefore, the cyclists do not have the same velocity at time, t = 3 seconds.
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The diagram below represents two horizontal platforms that are different height levels above ground ball rolls off the taller platform with a horizontal speed of 15 m/s in travels through the air landing on top of the short a platform. What is the total time the ball is in the air.
Answers
The total time the balls are in the air is 2.77 s.
The correct answer is option E.
To calculate the total time the ball is in the air, we need to analyze the vertical motion of the ball. Let's consider the given values:
Height of the taller platform (H1) = 6.0 m
Height of the shorter platform (H2) = 3.6 m
Horizontal speed of the ball (ux) = 15 m/s
We can neglect friction for this calculation. Since the ball rolls off the taller platform horizontally, the initial vertical velocity (uy) is zero. We can use the following equation to calculate the time of flight:
H = ut + (1/2)\(gt^2\)
Phase 1: Upward motion
In this phase, the ball moves vertically against the force of gravity. The acceleration due to gravity (g) is approximately 9.8 m/s^2. The initial vertical velocity (uy) is zero.
Using the equation of motion:
H1 = (1/2)\(gt^2\)
6.0 = (1/2)(\(9.8)t^2\)
12.0 =\(4.9t^2\)
\(t^2\) = 12.0 / 4.9
\(t^2\) ≈ 2.449
t ≈ \(\sqrt{2.449}\)
t ≈ 1.564 s
Phase 2: Downward motion
In this phase, the ball moves vertically downward. The final velocity in the upward phase (when it reaches the top of the shorter platform) is zero. We can calculate the time it takes to fall from the shorter platform using the same equation:
H2 = (1/2)g\(t^2\)
3.6 = (1/2)(9.8)\(t^2\)
7.2 = 4.9\(t^2\)
\(t^2\) = 7.2 / 4.9
\(t^2\) ≈ 1.469
t ≈ \(\sqrt{1.469}\)
t ≈ 1.212 s
Total time:
The total time the ball is in the air is the sum of the times for phase 1 and phase 2:
Total time = t1 + t2
Total time ≈ 1.564 + 1.212
Total time ≈ 2.776 s
Therefore, among the given options the correct one is option E.
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The question probable may be:
The diagram represents two horizontal platforms that are different height levels above ground ball rolls off the taller platform with a horizontal speed of 15 m/s in travels through the air landing on top of the short a platform. What is the total time the ball is in the air where H1 =6.0 m H2= 3.6m (NEGLECT FRICTION)
A.0.16 s
B. 0.70 s
C.0.49s
D. 1.1 s
E. 2.77 s
How is speed related to kinetic energy?
Answers
Answer:
K.E. = 1/2mv^2
Explanation:
v is velocity (a vector) not speed (a scalar) but they have the same magnitude
As you clear the sidewalk with a leaf blower, the blower pushes you away from the leaves. What is pushing on the blower so that it can push on you
Answers
So we want to find what causes the blower to push on you when you use it.
We will see that this happens because of Newton's third law, and the thing that is pushing the blower is the air itself.
Well, Newton's third law says that when two objects interact, they exert equal and opposite forces on each other.
In this case, the leaf blower is interacting with the air, pushing it so it can push away the leaves. But by this law, the air also exerts a force on the leaf blower (we have the interaction leaf blower- air) so the air is what "pushes" the blower, and because you are holding it, you feel that push.
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A motorcycle daredevil is attempting to jump from one ramp onto another. The takeoff ramp makes an angle of 18.0o above the horizontal, and the landing ramp is identical. The cyclist leaves the ramp with a speed of 33.5 m/s. What is the maximum distance that the landing ramp can be placed from the takeoff ramp so that the cyclist still lands on it?
Answers
Therefore, the maximum distance that the landing ramp can be placed from the takeoff ramp so that the cyclist still lands on it is 75.5 m. Hence, option C is correct.
We have to find the maximum distance that the landing ramp can be placed from the takeoff ramp so that the cyclist still lands on it, given that a motorcycle daredevil is attempting to jump from one ramp onto another. The takeoff ramp makes an angle of 18.00 above the horizontal, and the landing ramp is identical. The cyclist leaves the ramp with a speed of 33.5 m/s.
Let's begin with the solution:
Consider the diagram shown below:
Here, AB = Take off ramp, BC = Landing rampθ = 18.0°, Speed of the cyclist, u = 33.5 m/s
It is given that the landing ramp is identical to the takeoff ramp.
So, the angle between the ramp and horizontal is also θ = 18.0°.
The vertical and horizontal components of velocity at point A are given by:
v_y = u sin θ and v_x = u cos θ
The time of flight of the cyclist from A to C is given by:
t = [2v_y] / g Where g is the acceleration due to gravity= 9.81 m/s²
The horizontal distance covered by the cyclist in the time of flight is given by:
x = v_x t …..(1)
The height of the landing ramp (point C) from the ground is given by:
y = BC sin θ …..(2)
The cyclist has to land on the landing ramp (point C).
Therefore, the height of the landing ramp must be equal to the height at which the cyclist leaves the takeoff ramp (point A).
Therefore, from the diagram shown above, we have:
y = AB sin θ …..(3)
From (2) and (3), we have:
AB sin θ = BC sin θ
Or
AB = BC ... (identical ramps)
From equation (1),
we have:
x = v_x
t= u cos θ [2v_y / g]... (4)
Substituting the values of u, θ, v_y and g,
we get:
x = [33.5 m/s] cos 18.0° [2 (33.5 sin 18.0°) / 9.81 m/s²]= 75.5 m (approximately)
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Please give me all formulas of motion that we require to solve numericals..(from ch gravitation class 9)
Answers
Explanation:
F = G*M1 *m2 / r²
g = G *M / R²
v= u+GT.
v² = u²+2gh.
s= ut + 1/2 gt²
W= mg.
pressure = thrust / area.
relative density = density of substance / density of water.
hope it helps you
A sound wave passes from air into water and then into steel. With each change in medium, what happens to the speed of the wave?.
Answers
Answer:
Explanation:
You need to consider the index of refraction.
index of refraction of air: 1.00
index of refraction of water: 1.33
Index of refraction of steel: 2.75681
If the sound wave passed from air into water, it passes from a lower index to a higher index of refraction.
As the wave travels into the more dense medium (higher n), it slows down. Therefore from air to water (lower to higher) it slows down, and from water to steel (n of steel is higher that n of water) therefore it slows down even more.
what is the most likely reason for the difference between how the compass works on earth and on the moon?
Answers
Answer: A compass taken to Earth's moon does not point in a specific direction on the moon. The moon does not have a strong magnetic field.
what is atomic weight
Answers
Answer:
Its also know as atomic mass its the mass of isotopes.
Explanation:
relative atomic masses of sources in the local environment of the Earth's crust and atmosphere as determined by the atomic weight.
when light of wavelength 360 nm falls on a lithium surface, electrons are emitted that have a maximum kinetic energy of 1.15 ev.T/F
Answers
The maximum kinetic energy but not the work function, we can conclude that the statement is True.
The kinetic energy of emitted electrons in the photoelectric effect is given by the equation:
KE = hf - φ
Where KE is the kinetic energy, h is Planck's constant, f is the frequency of the incident light, and φ is the work function of the material (the minimum energy required to remove an electron from the surface).
To calculate the maximum kinetic energy, we need to convert the given wavelength of 360 nm to frequency using the equation:
c = λf
Where c is the speed of light and λ is the wavelength. Rearranging the equation, we get:
f = c / λ
Plugging in the values, we have:
f = (3.00 × 10^8 m/s) / (360 × 10^(-9) m)
f ≈ 8.33 × 10^14 Hz
Now, we can calculate the maximum kinetic energy using the equation:
KE = hf - φ
The energy of a photon is given by:
E = hf
Where E is the energy of the photon. We know that 1 electron volt (eV) is equal to 1.6 × 10^(-19) joules. Converting 1.15 eV to joules:
KE = (1.15 eV) × (1.6 × 10^(-19) J/eV)
KE ≈ 1.84 × 10^(-19) J
Now, we can calculate the maximum kinetic energy:
KE = (8.33 × 10^14 Hz) × (6.63 × 10^(-34) J·s) - φ
1.84 × 10^(-19) J = (8.33 × 10^14 Hz) × (6.63 × 10^(-34) J·s) - φ
Since we are given the maximum kinetic energy but not the work function, we can conclude that the statement is True.
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A uniform electric field exists everywhere in the x, y plane. This electric field has a magnitude of 4650 N/C and is directed in the positive x direction. A point charge -8.40 10-9 C is placed at the origin.
(a) Determine the magnitude of the net electric field at x = -0.17 m.
N/C
(b) Determine the magnitude of the net electric field at x = +0.17 m.
N/C
(c) Determine the magnitude of the net electric field at y = +0.17 m.
N/C
Answers
(a) The magnitude of the net electric field at x = -0.17 m is 1.01x10^5 N/C.
(b) The magnitude of the net electric field at x = +0.17 m is 1.01x10^5 N/C.
(c) The magnitude of the net electric field at y = +0.17 m is 4650 N/C.
Explanation:
To solve this problem, we can use the formula for electric field due to a point charge and the principle of superposition of electric fields.
The electric field due to a point charge is given by:
E = k*q/r^2
where E is the electric field, k is Coulomb's constant (9x10^9 N m^2/C^2), q is the charge, and r is the distance from the point charge.
(a) To find the net electric field at x = -0.17 m, we need to consider the electric field due to the point charge and the uniform electric field. The distance from the point charge to x = -0.17 m is:
r = sqrt((0.17)^2) = 0.17 m
The electric field due to the point charge at x = -0.17 m is:
E1 = kq/r^2 = (9x10^9 N m^2/C^2)(-8.40x10^-9 C)/(0.17 m)^2 = -1.06x10^5 N/C (in the negative x direction)
The electric field due to the uniform electric field is given by:
E2 = 4650 N/C (in the positive x direction)
The net electric field at x = -0.17 m is the vector sum of E1 and E2:
E_net = E1 + E2 = -1.06x10^5 N/C + 4650 N/C = -1.01x10^5 N/C
Therefore, the magnitude of the net electric field at x = -0.17 m is 1.01x10^5 N/C.
(b) To find the net electric field at x = +0.17 m, we follow the same procedure as in part (a). The distance from the point charge to x = +0.17 m is:
r = sqrt((0.17)^2) = 0.17 m
The electric field due to the point charge at x = +0.17 m is:
E1 = kq/r^2 = (9x10^9 N m^2/C^2)(-8.40x10^-9 C)/(0.17 m)^2 = -1.06x10^5 N/C (in the positive x direction)
The electric field due to the uniform electric field is given by:
E2 = 4650 N/C (in the positive x direction)
The net electric field at x = +0.17 m is the vector sum of E1 and E2:
E_net = E1 + E2 = -1.06x10^5 N/C + 4650 N/C = -1.01x10^5 N/C
Therefore, the magnitude of the net electric field at x = +0.17 m is 1.01x10^5 N/C.
(c) To find the net electric field at y = +0.17 m, we only need to consider the electric field due to the uniform electric field, since the point charge is located on the x-axis. The electric field due to the uniform electric field is given by:
E = 4650 N/C (in the positive x direction)
Therefore, the magnitude of the net electric field at y = +0.17 m is 4650 N/C, in the positive x direction
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a drum crane whirlwinds in 100m of cable when raising a load of 240N through a height of 10m an effort of 30 000 N is needed Calculate the efficiency showing how you obtained your answer
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Explanation:
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What are the two steps required to charge an object without any physical contact between charged objects
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There are two main methods for charging an object without any physical contact between charged objects namely induction and Coulombic attraction/repulsion.
Induction is a process by which a charged object can influence the distribution of charges in a nearby conductor without actually touching it. When a charged object is brought near a conductor, it causes the electrons in the conductor to rearrange themselves in an effort to balance out the overall charge distribution. This can result in one end of the conductor becoming positively charged and the other end becoming negatively charged.
Coulombic attraction/repulsion is a phenomenon that occurs when two charged objects are brought close together. According to Coulomb's Law, if the two objects have opposite charges (e.g. one is positive and the other is negative), they will experience a force of attraction. If the two objects have the same charge (e.g. both are positive or both are negative), they will experience a force of repulsion.
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Your question seems incorrect, but I assume the correct question was:
"What are the two main methods to charge an object without any physical contact between charged objects?"
How do gender roles differ from gender stereotypes?:
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The attitudes and expectations around gender roles are often founded on gender stereotypes, or oversimplified ideas about the attitudes, attributes, and behavior patterns of males and females, rather than on any inherent or natural gender distinctions.
Gender stereotypes are broadly accepted ideas about traits that are considered suitable for males and females. There really are gender stereotypes regarding character, profession, and skills. These prejudices are reflected in gender roles, which are commonplace actions.
Hence Understanding these beliefs and their origins is essential to conquering them even if they are typically damaging to society.
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Jeff is a landscaping contractor and lifts a rock weighing 600 pounds by wedging a board under the rock. Jeff weighs 150 pounds and puts all of his weight on the lever. How much mechanical advantage did the lever provide to Jeff in lifring the rock?
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The mechanical advantage that us provided due to lifting the rock is 4.
What is the mechanical advantage?The term mechanical advantage has to do with the degree of ease that is introduced by the use of simple machines. We know that the entire purpose of a machine is to make work easier.
We also know that the mechanical advantage is the ratio of the load to the effort.
MA = Load/Effort
Load = 600 pounds
Effort = 150 pounds
MA = 600 pounds / 150 pounds
= 4
The lever offer Jeff a mechanical advantage of 4 as he lifts the rock.
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