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You and a friend stand still on an escalator. a stationary observer sees you moving at a speed of 0.35 m/s. from your frame of reference, what is the speed of your friend?
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The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e
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Which features on mars point to the possibility of liquid water on the planet? impact craters with sharp rims volcanic cones with craters gullies and stream-like channels mountain ranges with faults
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You and a friend stand still on an escalator. a stationary observer sees you moving at a speed of 0....
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