3 years ago

If the slope of a line on a speed-time graph is 0 and it is not on the x-axis, what is the object doing?

Physics

1 answer:

Zinaida [17]3 years ago

4 0

It is moving at a constant speed, not accelerating.

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A 45.0 kg ice skater needs a 25 N horizontal force to get moving on a smooth ice surface. What is the coefficient of friction be

SVEN [57.7K]

The horizontal force : f = k*N
k- coefficient of friction
k = f /N
N = m * g = 45 kg * 9.81 m/s² = 441.45 N
k = 25 N : 441.45 N = 0.057
Answer C) 0.057

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The model of the atom proposed by Greek philosophers appears similar to the model proposed centuries later by Dalton. What was t

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The main difference between the model of the atom proposed by Greek philosophers and the model proposed centuries later by Dalton is that the Greek one was mainly speculative and philosophical - it wasn't based on real evidence, but on their suggestions and thoughts about the matter. On the other hand, Dalton had the means to prove his theory using viable evidence, not just speculations.

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so we can say

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here we have

$h = 1.79 km$

now from above equation

$W = (83 kg)(9.81 m/s^2)(1.79 \times 10^3 m)$

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Special relativity can be used to study an object in which frame of reference? A. A frame of reference that has no change in vel

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Answer:

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Explanation:

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Gravitational force depends on the mass of an object.

vampirchik [111]

Answer:

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Explanation:

Gravity is directly proportional to the size of an object. Therefore, the object with the most mass will have the greatest force of gravity. We know this from the equation. $F = G\frac{m_1m_2}{r^2}$

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