Please help! I’ll give brainliest! :)

Answer:

2

1

2

1

3

1

Explanation:

I'm pretty sure these are right. you might want to go back and check the first and third, but the other 4 are right

The greater mass will have greater acceleration is a fact from second law of motion. Thus, first situation is an example of second law. Spilling of water from the glass indicates the first law , that is law of inertia.

Newton' s first law of motion states that, every body tends to continue on the state of motion or rest until an external force acts upon it. This law is called law of inertia.

Second law states that the force applied on a body is directly proportional to the mass and acceleration.

Newton's third law states that, for every action there is an equal and opposite reaction. The first statement indicates the second law of motion and water spilling indicates the law of inertia.

As the mass increases, more force to be applied and acceleration decreases with mass. Thus third situation indicates second law. The magician pulling the cloth from stationary, hence it is first law.

A rocket launches by a force applied on the space and an opposing force from the fuel make it move indicating the third law. The last situation indicates the first law. Hence, the labeling is as 2,1,2,1,3,1.

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Answer:

1. Amplitude.

2. Rarefaction.

3. Wavelength.

4. Compression.

Explanation:

Sound are mechanical waves that are highly dependent on matter for their propagation and transmission. Some of the properties of sound waves as it travels through a medium such as solid, liquid and gas includes the following;

1. Amplitude: the density of the medium's particles at the compressions of the waves.

2. Rarefaction: the part of a wave where the particles of the medium are farther apart. This ultimately implies that, it is part of a longitudinal wave in which the particles that make up the matter for the movement of the wave are separated by a greater distance.

3. Wavelength: the distance between compressions or rarefactions i.e the distance between two successive compressions or refractions.

4. Compression: the part of a wave where the particles of the medium are closer together. This ultimately implies that, it is part of a longitudinal wave in which the particles that make up the matter for the movement of the wave are closer together.

Answer:

here is the answers .......

As per the given scenario, Ram will cross the river first.

Ram chooses the quickest route and crosses the river without turning. Ram and Hari can both swim in still water at the same speed, hence their respective speeds when crossing the river will be equivalent. Ram will be able to get to the opposing bank the fastest as a result.

Hari, on the other hand, is swimming upstream at an angle and is being dragged downstream by the water.

Hari's overall travel distance will increase due to the downstream current, however his effective speed will drop in comparison to the other bank. Hari will therefore take longer than Ram to get to the opposing bank.

Thus, Ram will cross the river first in this scenario.

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Optical illusions can be fascinating and addictive. My two favorite illusions are the Spinning Dancer illusion from Live Science and the Kanizsa Triangle illusion from Interesting Engineering. These illusions provide insights into how our brain processes visual information and can be surprising.

The Spinning Dancer illusion, found on Live Science, depicts a silhouette of a dancer spinning. The illusion occurs when the viewer perceives the dancer as spinning either clockwise or counterclockwise.

What's interesting about this illusion is that it can switch directions for the same viewer. The illusion relies on ambiguous visual cues, such as the position of the raised leg and the shadow beneath it.

As our brain tries to make sense of the image, it fills in missing information and imposes its own interpretation, resulting in the perceived spinning motion.

The Kanizsa Triangle illusion, discovered on Interesting Engineering, showcases a triangle that appears to be present even though the actual triangle is incomplete.

This illusion demonstrates our brain's ability to perceive objects based on incomplete or fragmented information. The brain tends to fill in the gaps and complete the shape, creating the illusion of a triangle.

This phenomenon, known as "illusory contours," reveals the brain's tendency to impose structure and meaning onto visual stimuli.Overall, these optical illusions highlight the remarkable capabilities and limitations of our visual perception.

They show how our brain constructs our visual reality based on interpretation and inference rather than presenting a faithful representation of the external world.

Engaging with these illusions not only provides entertainment but also prompts reflection on the intricacies of human perception and cognition.

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If the truck is moving with the same velocity, if the mass is cut in half then the momentum of the truck will also reduce to half.

The momentum of a body can be described as the function of the object's mass and velocity. Momentum (p) can be determined as kinetic energy and is the product of velocity (v) and mass (m).

The momentum of an object can be determined from the mathematical formula:

p = m×v

The momentum of an object is conserved and can be equal to zero if the object is stationary and its velocity of an object is zero.

Given, the truck has a momentum, p = 5000 units

Given that the mass of the truck is reduced to half. Then the new mass of the truck is equal m/2.  If the truck is still moving with the same velocity then the momentum is equal to:

p' = m' ×v

p' = (m/2) ×v

p' = mv/2

p' = p/2

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Answer:

Me

Explanation:

r

Answer:

me

Explanation:

r

The work done by the pump to fill the tank is 10,483,200 foot-pounds.

Given the following data: Volume of the water tank = 1200 cubic feet

The discharge pipe is located 140 feet above the level in a lake

The pump is used to lift water from the lake to discharge the pipe

Work done is the force applied to an object and the distance through which that force is applied. It can be calculated using the formula,

Work done = force × distance

- Here, the force required is the weight of the water and distance is the height it is lifted.

Force = Weight = Density × Volume (where density of water = 62.4 lb/ft³)

Force = 62.4 × 1200 = 74,880 pounds

- Therefore, the work done by the pump to fill the tank is

Work done = force × distance

Work done = 74,880 × 140

Work done = 10,483,200 foot-pounds.

Therefore, the work done by the pump to fill water tank with a volume of 1200 cubic feet is 10,483,200 foot-pounds.

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Answer: 36.5N

Explanation:

Given that the side length of cube (s) = 0.155m

The buoyant force also regarded as upthrust can be explained as the upward force exerted on by a fluid on an object immersed in it.

Buoyant force is calculated using the formula :

F = density × volume × acceleration due to gravity

Density of water = 1000kg/m^3

Volume of cube = s^3

Volume = 0.155^3 = 0.003723875

Recall:

density = mass / volume

Mass = density * volume

Mass = 1000kg/m^3 * 0.003723875m^3

Mass = 3.723875kg

Buoyant force or upthrust = weight of fluid displaced.

Weight = mass * acceleration due to gravity

Buoyant force = (3.723875 * 9.8)

Buoyant force = 36.493975

= 36.5N

The  diameter of the U.S. dime when expressed in nanometers is 1.8 x 10^7 nm, which corresponds to option B).

The diameter of an object is the distance across the object passing through its center, measured in units such as millimeters (mm), centimeters (cm), or meters (m). In the case of the U.S. dime, the diameter was changed to approximately 18 mm in 1828.

To convert this diameter to nanometers (nm), we need to use the conversion factor that relates millimeters to nanometers. One millimeter is equal to one million nanometers (1 mm = 1,000,000 nm).

So, to convert 18 mm to nanometers, we can multiply 18 by 1,000,000 as follows:

18 mm * 1,000,000 nm/mm = 18,000,000 nm

Therefore, the diameter of the U.S. dime when expressed in nanometers is 1.8 x 10^7 nm, which corresponds to option B).

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Answer: electrostatic force

Explanation:

electrostatic forces pull or push on objects without touching them, which is how when you rub some materials together they can result in something called a 'charge', being moved from point A to point B.

Answer:

the answer is dielectric

hope helps you

Explanation:

Answer:

dielectric

Explanation:

edge

Answer:

no we can send rovers into space to explore i am reading the martian but this is my opinion it depends on what nasa decides

Explanation:

Women:

They were excluded due to social expectations, they were expected to take a female role that entailed learning domestic skills, getting married, having children.

Minorities:

They were excluded because of limited academic opportunities.

Women were excluded from psychology due to social expectations.

Minorities were excluded from psychology because of limited academic opportunities.

Psychology is the scientific study related to mind and behavior. Psychology involves the study of conscious and unconscious mind, including feelings and emotions.

Women were not allowed or accepted to refer to the Psychologist because they were considered to be always happy with the family and being busy with the house chores and take responsibility of all the family members.

Women were expected to take a female role that include learning domestic skills, getting married and having children.

For minority, they are not allowed to take hold of post or admission in academic institutions. They have very limited amount of opportunities in educational background.

Thus, the reasons are explained for the exemption of women and minority from psychology.

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Answer:

Yes

Explanation:

This is because for the light to come on, electric current has to flow through it which is due to electron motion. As the electrons move through the light, it turns electrical energy to light energy, so the light comes on.

The efficiency values that is reasonable If you want to design a high efficiency wind turbine is 45%

The efficiency of a wind turbine is the ratio of the power it generates to the power in the wind.

The theoretical maximum efficiency of a wind turbine is the Betz limit, which is 59.3%.

However, in practice, wind turbines are typically only about 35%- 45% efficient.

There are a number of factors that can affect the efficiency of a wind turbine, including the size of the turbine, the wind speed, and the design of the turbine.

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(1) The magnitude and direction of the average acceleration of the baseball while it is in contact with the bat is 8,000 m/s² east.

(2) The magnitude of the average force the Bat exerts on the ball while they are in contact is 1,120 N.

The given parameters:

The magnitude and direction of the average acceleration of the baseball while it is in contact with the bat is calculated as follows:

\(a = \frac{v- u}{t} \\\\a = \frac{35 - (-45)}{0.01} \\\\a = \frac{80}{0.01} \\\\a = 8,000 \ m/s^2\)

The magnitude of the average force the Bat exerts on the ball while they are in contact is calculated as follows;

\(F = ma\\\\F = 0.14 \times 8,000\\\\F = 1,120 \ N\)

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(i) The magnitudes of the electric fields they separately create at a radial distance of 6 cm is \(E_{a}\)=\(E_b}\). and (ii) The magnitudes of the electric fields they separately create at radius 4 cm is \(E_{a} =E_{b}\), so the correct option is option b.

A conductor refers to a material that allows an electric current to flow through it with ease. In other words, it has a low electrical resistance. Conductors are materials that have a high number of free electrons that are able to move freely through the material. Examples of conductors include copper, aluminum, gold, and silver. These materials are commonly used in the electrical industry to make wires and other electrical components that need to conduct electricity. In addition to materials, a conductor can also refer to a person or an organization that is responsible for directing or leading an orchestra or a choir. In this context, a conductor is in charge of maintaining the ensemble's rhythm and intonation, and interpreting the score in a way that brings out the music's emotional content and intended meaning.

(i) The magnitude of the electric field created by a charged conductor is given by the formula E = \(\frac{kq}{r}\), where k is the Coulomb constant, q is the charge, and r is the distance from the center of the sphere.

For a good conductor, like sphere A, the charge will be distributed evenly on the surface of the sphere. So, the electric field at a radial distance of 6cm will be Eₐ = \(\frac{kq}{r^{2} }\) = \(k\frac{210^{-6} }{(619^{-2} )}^{2} =\frac{k}{72}\)

For an insulator, like sphere B, the charge is distributed uniformly throughout its volume. The electric field at a radial distance of 6cm will be \(E_{b}\)=  \(\frac{kq}{r^{2} }=k\frac{210^{-6} }{(619^{-2} )}^{2} =\frac{k}{72}\)

As we can see, the magnitudes of the electric fields created by both spheres are equal, so the answer is (b) \(E_{a} =E_{b}\)

(ii) For the radius of 4cm, the electric field created by sphere A and sphere B will

\(E_{a} =\frac{kq}{r^{2} }=k\frac{210^{-6} }{(410^{-2} )^{2} } =\frac{k}{16}\\E_{b} =\frac{kq}{r^{2} }=k\frac{210^{-6} }{(410^{-2} )^{2} } =\frac{k}{16}\\\)

As we can see, the magnitudes of the electric fields created by both spheres are equal at a radius of 4cm, so the answer is (b) \(E_{a} =E_{b}\)

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For constructive interference of identical waves, the frequency of the resulting combined waveform is equal to the frequency of the individual waves being added together.

In constructive interference, two identical waves are combined to form a resultant wave that has a larger amplitude than the individual waves. When the crests of the two waves overlap, they interfere constructively, resulting in a larger amplitude at that point. When the troughs of the waves overlap, they interfere destructively, resulting in a smaller amplitude at that point.

Thus, for constructive interference of identical waves, the frequency of the resulting combined waveform is unchanged from the original waves. Therefore, the frequency of the resulting combined waveform is equal to the frequency of the individual waves being added together.

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When you increase the distance between yourself and the point source of light by a factor of 3, the intensity of the light you see emanating from that source decreases by a factor of 9 by inverse square law.

The inverse square law states that the intensity of light is inversely proportional to the square of the distance from the source.

To understand the change in intensity, let's represent the initial distance as d and the initial intensity as I. When you increase the distance by a factor of 3, the new distance becomes 3d. According to the inverse square law, the relationship between intensity and distance is:

I1 / I2 = (d2 / d1)^2

Where I1 and I2 are the initial and final intensities, and d1 and d2 are the initial and final distances. In this case, I1 is the initial intensity, d1 is d, and d2 is 3d. We want to find out the change in intensity (I2).

I1 / I2 = (3d / d)^2
I1 / I2 = (3)^2
I1 / I2 = 9

Therefore, I2 = I1 / 9.

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There are some traits of successful entrepreneurs, these are as follows:

1. He should be a highly motivated towards the work.

2. He sholud be creative in nature. He should think out of box and develop some ideas for the problem.

3. He should have clear vision for the future.

4. He should be very versatile and ready to adapt any changes.

5. He should be ready to take some risk.

6. He should have the ability of decision making and leadership quality.

Explanation:

The problem here deals with relative dating of fossils in a stratigraphic column.

To solve this problem, we apply one of the rules of interpreting a session which is the principle of fossil and fauna succession:

    "fossils and fauna in a geologic sequence succeed one another in a predictable way".

  The oldest fossil is found in the oldest bed usually at the bottom of the sequence.

The youngest fossil is found at the top of the beds.

1. Oldest organism in the sequence;

  Trilobite

2. Organism in the youngest layer;

   Fern

3. Older organism between Crinoid and Ammonite;

       Ammonite

The ammonite is below the crinoid in the sequence.

Answer:

k = 44000 N/m

Explanation:

Given the following data;

Maximum gravitational potential energy = 770 J

Elastic potential energy = 14% of 770 J = 14/100 * 770 = 107.8 J

Extension, x = 42 - 35 = 7cm to meters = 7/100 = 0.07 m

To find the spring constant, k;

The elastic potential energy of an object is given by the formula;

\( E.P.E = \frac {1}{2}kx^{2}\)

Substituting into the equation, we have;

\( 107.8 = \frac {1}{2}*k*0.07^{2}\)

\( 107.8 = \frac {1}{2}*k*0.0049 \)

Cross-multiplying, we have;

\( 215.6 = k*0.0049 \)

\( k = \frac {215.6}{0.0049} \)

k = 44000 N/m

The spring constant of the tendon is 44000 N/m.

The following can be depicted from the question:

Elastic potential energy will be:

= 14% × 770J = 107.80 Joule.

The spring constant will be calculated thus:

107.8 = 1/2 × k × 0.07²

107.8 = 0.5 × k × 0.0049

k = 215.6 / 0.0049

k = 44000 N/m.

Therefore, the spring constant of the tendon is 44000 N/m.

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Answer:

the amount of the force i learned it from my teacher

The amount of force is referred to as the magnitude of a force. Hence, option B is correct.

A force is an action that has the ability to alter an object's motion. An object can be caused by a force, which can also accelerate an item. To describe force, a push or a pull, makes intuitive sense. Forces have had both direction and magnitude, since they are vector quantities. It is measured in newtons that use the SI system (N). The symbol for force is the letter F.

An entity's net force equals the rate at which its momentum is changing over time, according to the original formulation of Newton's second law.

Objects' velocities can be changed by the concepts of push, drag, and torque. Thrust causes an item to move faster, whereas torque allows an object to move slower. Each part of an extended body typically exerts forces on its adjacent sections; the internal mechanical stress in the body is the result of the distribution of these forces.

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The magnitude of the electric force on an electron at the negative plate is \(2.62 x 10^-16 N\).

When a 9V battery is connected across two parallel plates separated by 5.5 mm of air, it creates an electric field between the plates, which in turn exerts a force on any charged particle placed in the field. To calculate the magnitude of the electric force on an electron at the negative plate, we first use the formula E = V/d to find the electric field strength. Substituting the given values, we get \(E = 1.64 x 10^3 N/C\). Then, using the formula F = qE, where q is the charge of an electron, we get the magnitude of the electric force as \(2.62 x 10^-16 N\), with a negative sign indicating an attractive force towards the positive plate.

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Answer: \overline {a} = {v - v_0}{t} = \frac{\Delta v}{\Delta t}

\overline{a} = average acceleration

v = final velocity

v_0 = starting velocity

t = elapsed time

Explanation: math i hoped it helped.

Answer:

3m/s2

Explanation:

By using the equation

F=ma

For calculating acceleration the eq will be

a=f/m

a=6/2

a=3

As given, the motorcyclist starts from rest and reaches a speed of 6 m/s

after traveling with uniform acceleration for 3 seconds.

Here, initial velocity u=0

Final velocity v=6 m/s

Time t=3 sec.

Let the acceleration of the motorcycle be a.

On using the equation of motion, v=u+at

6=0+3×a

Or 3a=6

Or a=63

Or a=2 m/s2

→Therefore, the acceleration in a motorcycle is 2 m/s2.←