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Mkey [24]
2 years ago
12

What is the correct answer?

Physics
1 answer:
LUCKY_DIMON [66]2 years ago
8 0

Answer:

I think is d and you or very pretty

Explanation:

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Explanation:

523 degrees

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Which energy transformation occurs when a butane lighter is lit?
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Two identical balls are thrown vertically upward. the second ball is thrown with an initial speed that is twice that of the firs
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The motion of the ball on the vertical axis is an accelerated motion, with acceleration 
a=g=-9.81 m/s^2
The following relationship holds for an uniformly accelerated motion:
2aS=v_f^2 - v_i^2
where S is the distance covered, vf the final velocity and vi the initial velocity.

If we take the moment the ball reaches the maximum height (let's call this height h), then at this point of the motion the vertical velocity is zero:
v_f =0
So we can rewrite the equation as
2(-9.81 m/s^2) h=-v_i^2
from which we can isolate h
h= \frac{v_i^2}{19.62} (1)

Now let's assume that v_i is the initial velocity of the first ball. The second ball has an initial velocity that is twice the one of the first ball: 2v_i. So the maximum height of the second ball is
h= \frac{(2v_i)^2}{19.62}= \frac{4v_i^2}{19.62} (2)

Which is 4 times the height we found in (1). Therefore, the maximum height of ball 2 is 4 times the maximum height of ball 1.
8 0
3 years ago
An experiment to measure the speed of light uses an apparatus similar to Fizeau's. The distance between the light source and the
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Answer:

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Explanation:

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Speed of light is given by

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