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2 years ago

Thanks + BRAINLIST Please need correct answer asappp

Physics

1 answer:

nirvana33 [79]2 years ago

6 0

Answer:

Standing waves can be thought of as a sin wave and a cos wave overlapping each other. They go in different direction hence C is correct
Wave interference can be thought of as the opposite of destructive ---> constructive anda hencd meet and interact on the same medium such that answer B is correct

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What is the kinetic energy of a golf ball with a mass of 0.046 kg traveling at 15.5<br> m/s?

Serjik [45]

Answer:

Explanation:

The kinetic energy of an object can be found by using the formula

$k = \frac{1}{2} m {v}^{2} \\$

m is the mass

v is the velocity

From the question we have

$k = \frac{1}{2} \times 0.046 \times {15.5}^{2} \\ = 0.023 \times 240.25 \\ = 5.52575$

We have the final answer as

Hope this helps you

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3 years ago

A pressure cooker contains water and steam in equilibrium at a pressure greater than atmo-spheric pressure. How does this greate

Amanda [17]

Answer:

As the pressure inside the pressure cooker increases as it is heated, the temperature also increases.

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3 years ago

Anne applies a force on a toy car and makes it move forward. What can be said about the forces acting on the toy car at the mome

tester [92]

The correct answer to the question is unbalanced .

EXPLANATION:

As per Newton's first laws of motion, we know that a body at rest will be at rest or a body moving with uniform velocity along a straight line will keep on moving with the same velocity along that line unless and until it is compelled by some external unbalanced forces acting on.

Hence, it is the unbalanced force which is responsible for creating the motion on the body.

As per the question, Anne applied some force on the toy car. It is called applied force. There is also frictional force between car and the surface which opposes the motion of the car. The toy car will move due to the net force acting on it. The net force is known as unbalanced force.

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3 years ago

Read 2 more answers

How far does a car in 90 sec if it is traveling at a speed of 55m/s show equation

Mkey [24]

Answer:

4950 meters

Explanation:

Recall that the formula for the speed (v) is given by the quotient of the distance traveled (d) divided by the time (t) it took to cover that distance:

$v=\frac{d}{t}$

Therefore, for this case in which the car travels at 55 m/s for 90 seconds, we can replace these values in the formula, and solve for the distance covered:

$v =\frac{d}{t} \\55 \frac{m}{s} =\frac{d}{90\,s} \\d=55*90 m\\\\d=4950\,m$