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Sedaia [141]
3 years ago
6

A straight line with a negative slope on a velocity-time graph indicates which of the following?

Physics
1 answer:
Rufina [12.5K]3 years ago
5 0

Answer:

constant acceleration away from the reference

Explanation:

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A stone that starts at rest free falls for 7.0 s. How far does the stone fall in this time?
vredina [299]

Gravitational acceleration is approx 9.8 m/s
Time is 7s

a=9.8 m/s
t=7s

a = d/t^2

therefore:

d = a * t^2

d = 9.8 * 7^2

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7 0
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GalinKa [24]

Sound needs medium to travel and it can not travel without medium

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so correct answer will be

<em>mechanical longitudinal </em>

7 0
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6 0
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An object of mass 6.00 kg falls with an aceleration of 8.00 m/s2. The magnitude of air resitance must be ____ N
allsm [11]
Using Newton's Second Law, we can find the air resistance. We know the net force is equal to mass times acceleration.F_{net} = m*a = (6.00kg)(8.00 \frac{m}{s^2}) = 48N &#10;&#10;F_{g} - F_{d} = 48N&#10;&#10;48N = (6.00kg)(9.81m/s^2) - F_{d} &#10;&#10;F_{d} = 10.86N


7 0
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02: Describes what happens to the strength of gravity if the mass between two objects
Dmitriy789 [7]

Explanation:

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