Answer:
v(7) = 52.915 m/s
Explanation:
First, find the value for acceleration.
F = ma
100 = .5 * a
a = 200 m/s²
Next find the velocity at x = 7 using kinematic equations.
v² = v₀² + 2a(Δx)
v² = (0)² + 2(200)(7)
v =
v = 52.915 m/s
A man pushes a 10-kg block 10 m, along a rough, horizontal
1 answer:
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Answer:
3 A
Explanation:
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Substituting 120 C for charge and 40 s for t then
From the choices given, it appears that time should have been 4 s to get option A or alternatively charge should have been 1200 C
The radius of Earth's circular trajectory is
The time for the Earth to travel around the Sun is
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The time for the Earth to travel around the Sun is
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