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nadezda [96]
3 years ago
5

Which of the following is the same in all frames of reference?

Physics
1 answer:
Ksju [112]3 years ago
4 0
The correct option is B.
The length of an object, the mass of an object and the rate of time passage for an object can change depending on the situation which the object is subject to. For instance in space, the mass and the velocity of an object usually change. But, the value of the speed of light in the space is the same for all observers regardless of the motion of an object, that is, the speed of light is a constant.<span />
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3 years ago
a body dropped from a height reaches a velocity of 13m/s just before touching the ground. What is the initial height of the ball
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Hi there!

We can use the following (derived) equation to solve for the final velocity given height:

vf = √2gh

We can rearrange to solve for height:

vf² = 2gh

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(13)²/2(9.81) = 8.614 m

We can calculate time using the equation:

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