Two charged point-like objects are located on the x-axis. The point-like object with charge q1 = 4. 60 µC is located at x1 = 1. 25 cm and the point-like object with charge q2 = −2. 14 µC is located at x2 = −1. 80 cm.


A) Determine the total electric potential (in V) at the origin.


B) Determine the total electric potential (in V) at the point with coordinates (0, 1. 50 cm)

Answer:

between a ball and a car

Explanation:

lol i am just as baffled as you luv

The amount of time it takes you to start responding after the environment has changed is known as the reaction time.

From the moment he sees the rabbit until his car comes to a complete halt, how long will the car travel?

A simple internet search revealed that it normally takes people 2.3 seconds to respond after spotting an object and applying the brakes. We know how long it will take to react, therefore we must convert miles per hour to metres per second.

Initial velocity is 21 m/s, and the ultimate speed is 8.0 m/s with a negative acceleration time of 0.20 seconds.

v2=u2+2as

Distance equals speed times time, or -6.3 x 0.20, or 1.26 m.

When given multiple stimuli, simple reaction time entails choosing one unique and accurate answer from a range of options.

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Answer:

0.6

Explanation:

Answer:

2.5 s

Explanation:

The formula for acceleration is ;

a= v₂-v₁ / t

where ;

a= acceleration = -2 m/s²

v₂= final velocity = 10 m/s

v₁ = initial velocity = 15 m/s

t= time taken for the car to accelerate = ?

Applying the values in the formula as;

a= v₂-v₁ / t

-2 = 10 - 15 / t

-2t = -5

t= -5/ -2

t= 5/2 = 2.5 s

The Fahrenheit scale is most likely in use.

The average kinetic energy of the particles in a substance or object is measured by its temperature. It is a physical measure that expresses how hot or cold an object is in relation to a standard. Although Fahrenheit (°F) or Celsius (°C) are more frequently used to measure temperature than the SI unit of Kelvin (K), respectively.

The freezing and boiling points of the Fahrenheit scale, which is frequently used in the US, are 32°F and 212°F, respectively. In contrast, most other countries of the world use the Celsius scale, which has freezing and boiling values of 0°C and 100°C, respectively. The freezing and boiling points of the Kelvin scale, which is used to measure temperature, are 273.15 K and 373.15 K, respectively.

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A boy blows softly across the top of a soda bottle. the sound waves vibrate with a frequency of 1580 hz at the second lowest harmonic. The depth of the bottle is approximately 0.109 meters.

Sound waves can be described as longitudinal waves because the particles in the medium vibrate parallel to the direction of wave propagation. As the sound wave travels, it creates areas of compression and rarefaction, where the air particles are closer together or farther apart, respectively.

Humans perceive sound waves through their ears, where the vibrations of the sound waves are detected by the eardrums and converted into electrical signals that the brain interprets as sound. Sound waves are not only important for communication and music but also have various applications in fields such as acoustics, medicine, and engineering.

To determine the depth of the bottle, we need to use the formula:

L = (n/2) x (v/f)

Where L is the length of the air column in the bottle, n is the harmonic number (in this case, it is the second lowest harmonic, which means n=2), v is the speed of sound in air (which is approximately 343 m/s at room temperature), and f is the frequency of the sound wave (which is 1580 Hz).

Plugging in these values, we get:

L = (2/2) x (343/1580)

L = 0.109 m

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According to a test taker's average test score is indicated by an IQ score of 100 on the Stanford-Binet and Wechsler intelligence test.

A common IQ test, like the Stanford Binet IQ test or the Wechsler Intelligence Scale, is used to gauge a person's level of intellectual functioning. 100 is the global average. Low IQ scores refer to those with scores below 70. Professionals assess the person's adaptable behaviour as well.

The average result for all test takers of the same age is 100.

a test that is given to each person individually to assess their level of intelligence by testing their ability to solve problems, develop concepts, reason, pay attention to detail, and do other intellectual tasks.

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A Chromebook is accelerated out a widow at 8m/s². The amount of  force was needed for this acceleration is (F)=10.88 N

When a object start with a velocity and end with other velocity, The difference of velocity divided by given time is called the acceleration. This is a vector quantity.

To calculate the force we are using the formula here is,

F=ma

Here we are given,

m= The mass of the Chromebook we know = 1.36 kg.

a = The acceleration of the object = 8 m/s².

We have to calculate the value of force = F

Now we put the values in the equation we get,

F=ma

Or, F = 1.36*8

Or, F=10.88N

From the above calculation we can say that, The amount of  force was needed for this acceleration is (F)=10.88 N

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Answer: The amount of force needed for the acceleration is F=10.88N

Explanation:

acceleration is the rate of change of velocity over time, both in terms of speed and direction. It is a vector quantity.

A mass-containing object's change in velocity is referred to as a force when a push or pull is applied to it. A body can change its state of rest or motion when an external force acts on it. It is directed and has a magnitude.

using formula, F=ma

where, F=force ; m=mass ; a= acceleration

given quantities are:

known mass(m) of Chromebook= 1.36kg

acceleration (a)= 8m/s²

on putting the values in the formula we get,

F=ma

F=1.36*8

F=10.88N

therefore amount of force needed for this acceleration of 8m/s² is 10.88N

It defines the direction in which the body or item is moving. In its basic form, speed is a scalar quantity. In essence, velocity is a vector quantity. It is the speed at which distance changes. It is the displacement change rate.

Speed is the rate of movement of an object along a path in time.

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The average kinetic energy of an object can be calculated using the formula:

Average Kinetic Energy = (1/2) * mass * velocity^2

In this case, the given information includes the mass of the toy car and the distance it travels in a given time period. However, the velocity of the toy car is not directly provided. To calculate the velocity, we can use the formula:

velocity = distance / time

Plugging the values into the formula:

velocity = 6m / 2s = 3 m/s

Now we have the velocity, we can calculate the average kinetic energy:

Average Kinetic Energy = (1/2) * mass * velocity^2

Since the mass of the toy car is not specified in the question, it is not possible to provide a numerical value for the average kinetic energy without that information.

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Answer:

I am pretty sure it is B My friend hope you are well

Explanation:

Answer:

B- It is a constant when the light is traveling in a vacuum.

Explanation:

"Light in a vacuum always travels at the same speed." Those additional three words in a vacuum are very important. A vacuum is a region with no matter in it. So a vacuum would not contain any dust particles (unlike a vacuum cleaner, which is generally full of dust particles)

Ferns are located in which zone of deciduous forests (d) herb

These woods are not deciduous like their northern hemisphere counterparts. Deciduous forests in the Northern Hemisphere commonly contain trees like oak, maple, basswood, and beech.

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Answer: D - Herb

Explanation:

Edge pre-test and got it correct!

Answer:

465000 meters

Explanation:

kilometer to meter = ×1000

465 × 1000 = 465000

Answer:

465000 M

Explanation:

1Km = 1000m

465Km= (465)(1000)

465000

Answer:

Explanation:

The centripetal acceleration:

aₙ = F /m = 125 /19 ≈ 6.6 m/s²

1. Heat = 3 kg x 900 J/kg°C x (95°C - 40°C) = 27000 J.

2. Change in Temperature = 780 J / (4.1 kg x 385 J/kg°C) = 2.02°C.

3. Specific Heat Capacity = 15686 J / (1.1 kg x (47°C - 16°C)) = 1479.2 J/kg°C.

4. Heat = 0.778 kg x 4186 J/kg°C x (94°C - 26°C) = 200508 J.

5. Sample 3 has the highest specific heat capacity because it has the    greatest temperature change for the same amount of heat applied.

Energy is the ability to do work, or the capacity to produce an effect. It can be classified into two main forms — kinetic energy, which is the energy of motion, and potential energy, which is stored energy due to an object's position or state.

1: The amount of heat needed to raise the temperature of a 3 kg sample of aluminium from 40°C to 95°C is 27000 J.

This can be calculated by using the formula: Heat = Mass x Specific Heat Capacity x Change in Temperature.

Therefore, Heat = 3 kg x 900 J/kg°C x (95°C - 40°C) = 27000 J.

2: The temperature change of a 4.1 kg sample of copper when 780 J of energy is applied is 2.02°C.

This can be calculated by using the formula: Change in Temperature = Heat / (Mass x Specific Heat Capacity).

Therefore, Change in Temperature = 780 J / (4.1 kg x 385 J/kg°C) = 2.02°C.

3: The specific heat capacity of iron is 1479.2 J/kg°C.

This can be calculated by using the formula: Specific Heat Capacity = Heat / (Mass x Change in Temperature).

Therefore, Specific Heat Capacity = 15686 J / (1.1 kg x (47°C - 16°C)) = 1479.2 J/kg°C.

4: The amount of heat removed to lower the temperature of a 0.778 kg sample of water from 94°C to 26°C is 200508 J.

This can be calculated by using the formula: Heat = Mass x Specific Heat Capacity x Change in Temperature.

Therefore, Heat = 0.778 kg x 4186 J/kg°C x (94°C - 26°C) = 200508 J.

5: Sample 3 has the highest specific heat capacity because it has the greatest temperature change for the same amount of heat applied. This means that Sample 3 requires more energy to increase its temperature than Samples 1 and 2, thus indicating that it has the highest specific heat capacity.

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Hi there!

We can begin by solving for the pendulum's velocity at the bottom of its trajectory using the work-energy theorem.

Recall:
\(E_i = E_f\)

Initially, we just have Potential Energy. At the bottom, there is just Kinetic Energy.

\(PE = KE\\\\\)

Working equation:
\(\large\boxed{mgh = \frac{1}{2}mv^2}\)

Rearrange to solve for velocity:
\(gh = \frac{1}{2}v^2\\\\v = \sqrt{2gh}\\\\v = \sqrt{2(9.8)(1.5)} = 5.42 \frac{m}{s}\)

Now, we can do a summation of forces:
\(\Sigma F = T - W\)

The net force is the centripetal force, so:
\(\frac{mv^2}{r} = T - W\)

Rearrange to solve for tension:
\(T = \frac{mv^2}{r} + W\\\\T = \frac{5(5.42^2)}{4} + 5(9.8) = \boxed{85.75 N}\)

An element of atomic number 88 decays radioactively to an element of atomic number 82. The emissions that achieve this result is one alpha particle. The correct option is D. The emission that achieves this result is one alpha particle. The correct option is C.

To determine the emissions that achieve the radioactive decay from an element with atomic number 88 to an element with atomic number 82, we need to consider the changes in atomic number and mass number during the decay process.

In a radioactive decay, the atomic number decreases by the emission of a particle, and the mass number decreases by a specific amount as well.

Atomic number of initial element = 88

Atomic number of final element = 82

From this information, we can conclude that the decay process involves the emission of an alpha particle.

The emission of an alpha particle corresponds to the emission of a helium nucleus, which consists of two protons and two neutrons. This emission reduces the atomic number by 2 and the mass number by 4.

Therefore, the emission that achieves this result is C, one alpha particle.

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Answer: mechanical waves are caused by the disturbance of vibration in matter, whether solid, gas, liquid, or plasma.

Explanation:

With a=11.43 m/s2, option 4 is the proper response. The airplane accelerates to 160+ mph in less than two seconds during a catapult launch.

The speed about which velocity decreases is known termed accelerating. Acceleration typically indicates that the speed is changing, but not necessarily. An item that is moving in a circle while maintaining a constant speed is still accelerating because the direction of its motion is shifting.

An object's velocity may alter depending on whether it is moving faster, slower, or in a different direction. The moon orbiting the earth and an apple falling to the ground are two instances of acceleration.

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Answer:

I Believe the Correct Answer is respiratory system; obtains oxygen so the energy in nutrients can be extracted.

Explanation:

Respiratory System is made for oxygen and involves the Lungs Diaphragm etc.

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Answer: Gamma rays (violet) have the shortest wavelengths and the highest frequencies.

Explanation: The wavelength of the gamma rays is less than 0.01 nanometers. The frequency of a wave is inversely proportional to its wavelength. That means that waves with a high frequency have a short wavelength, while waves with a low frequency have a longer wavelength.

The electromagnetic waves have the shortest wavelength and the highest frequency is Gamma rays (violet).

Gamma radiation, from gamma rays (γ), is a type of electromagnetic radiation usually produced by radioactive elements. Gamma rays, due to their high energy, are able to penetrate matter more deeply than alpha or beta radiation.

Gamma ray is a type of high frequency electromagnetic radiation usually produced by radioactive elements.

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Speed = distance /  time

Speed = 12km /  5 minutes

Speed = 2.4 km per minute

Speed is measured per hour, 1 hour has 60 minutes.

2.4 km per minute x 60 minutes = 144 km per hour

Answer:

Work, W = F * d, and

Work = change in kinetic energy, so W=deltaKE.

Hence,

deltaKE=F * d

(1/2)*m*v^2 =F * d

d=[(1/2)*m*v^2]/F

d=[(1/2)*0.6*20^2]/5

d=24 m.

Explanation:

Work = change in kinetic energy, so W=deltaKE.

The work done by the weightlifter to hold the barbell motionless at her chest is zero.

The work done on an object is defined as the product of the applied force and the displacement of the object in the direction of the force. In this case, the weightlifter is holding the barbell motionless, which means there is no displacement occurring. When there is no displacement, the work done is zero.

To understand this concept further, we can consider that work is equal to the force applied multiplied by the distance moved in the direction of the force. Since the weightlifter is keeping the barbell stationary, there is no distance moved.

Therefore, even though the weightlifter is exerting a force to hold the barbell, no work is being done because there is no displacement in the direction of the force.

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The predominant carbon biking techniques regarding dwelling organisms are photosynthesis and breathing. These techniques are simply reciprocal to each other in regards to the biking of carbon: photosynthesis eliminates carbon dioxide from the surroundings and breathing returns it.

Interstellar is a movie about the human race being faced with a

civilization ending blight. A small group of brave individuals explore

possible new habitable worlds for humans. The following questions

will help guide you through the movie and hopefully get you

thinking about the future.

1. The Cooper family hijacks a UAV (Unmanned Aerial Vehicle).

What do you know about UAVs and how they are used today?

2. While at the parent-teacher conference, Murphy’s teacher

mentions that the Apollo program -- the same program that

landed humans on the Moon -- was just propaganda to

convince the Soviet Union to bankrupt themselves trying to do

the same. The reason for this was to encourage children to

take care of their own planet, rather than wasting precious

resources day dreaming of leaving it. Which side of the fence

would you sit on? Would you look for ways to save Earth and

our ability to stay there, or would you look to the sky, and find

a new planet to live on? Why?

3. A) What natural disaster(s) is Earth suffering from in the beginning of Interstellar?

B) If one of these happened now what actions would you take to protect yourself?

4. Cooper, Doyle, Romilly, and Dr. Brand (female) rendezvous with the Endurance in orbit around Earth. Once

onboard, they begin to spin the Endurance. Why? (Think about the physics happening here!) Draw a diagram.

5. Why or why isn’t space exploration important for the people in the movie interstellar? Why or why isn’t

space exploration important in today’s society? Defend your answers.

6. Explain time dilation as best as you can.

7. A) Estimate how long Dr. Mann went without human contact while on the ice planet:

The Lazarus mission was __________ years ago. It takes _______ years to get to Saturn from Earth. Cooper

and Dr. Brand were on Miller’s planet for approximately __________ years. This means the total time Dr.

Mann went without human contact is: ___________ years.

B) Consider the longest time away from human contact you've experienced. What did you do to keep yourself

occupied?

Useful Vocabulary

Blight: A specific symptom affecting plants in

response to infection by a pathogenic organism. The

potato famine of Ireland was caused by blight.

Event horizon: Is a point in which not even light can

escape the gravitational influence of the black hole.

Maroon: The intentional action of leaving someone

in a remote area such as an inhabitable island.

Rendezvous: When two objects meet and typically

dock together while in space.

Time dilation: A difference of elapsed time between

two events as measured by observers either moving

relative to each other or differently situated from

gravitational masses.

UAV: Unmanned Aerial Vehicles are remote

controlled or autonomous flying vehicles.

Unmanned aerial vehicles (UAVs) are typically used for a variety of purposes such as:

An unmanned aerial vehicle (UAV) is also referred to as a drone and it can be defined as an aircraft that is designed and developed to be piloted or controlled by a remote control (ground-based controller) and on-board computer systems.

This ultimately implies that, an unmanned aerial vehicle (UAV) is a class of aircrafts that can fly without any human pilot, cabin crew, or passengers on board.

In conclusion, unmanned aerial vehicles (UAVs) carries no human pilot and are typically used for a variety of purposes such as:

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Answer:

can be called kinetic or potential energy

Explanation:

The tension at which a material starts to permanently distort under load is known as yield strength. The yield strength of a material is referred to as biaxial yield strength.

when exposed to loads applied in opposite directions. It is, in other words, the amount of stress that a material can endure before simultaneously deforming in two directions. When designing materials and structures that must withstand difficult loading conditions, such as those found in mechanical, automotive, and aerospace engineering applications, this kind of strength is crucial. Testing is often used to assess a material's biaxial yield strength, which might differ depending on the composition, processing, and microstructure of the material. The yield point is the location on a stress-strain curve that denotes the end of elastic activity and the start of plastic behaviour in materials science and engineering.

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what is yield strength biaxial?

The lens used is a convex lens and it's focal length is 18.5cm.

To find the answer, we have to know more about the converging lens.

a) In light of the fact that sunlight focuses 18.5 centimeters behind the lens. The lens must be a converging lens because there is an actual image behind it. Thus, the lens used here is Convex lens.

b) To find the focal length, we have to use the Lens formula,

                           \(\frac{1}{f}=\frac{1}{v} -\frac{1}{u}\)

                              \(\frac{1}{f}=\frac{1}{18.5}-\frac{1}{\alpha} \\\\ \frac{1}{f}=\frac{1}{18.5}-0=\frac{1}{18.5}\\\\f=18.5cm\)

Thus, we can conclude that, the lens used is a convex lens and it's focal length is 18.5cm.

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