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An average man can reach a maximum height of about 60 centimeter when jumping straight up from a crouched position. During the jump itself, the person's body from the knees up typically rises a distance of around 50 centimeter. To keep the calculations simple and yet get a reasonable result, assume that the entire body rises this much during the jump.
In terms of this jumper's weight W, find what force does the ground exert on him or her during the jump?
A stone is thrown upwards with an initial velocity of 60 km/h. Calculate the maxiumum height from the ground
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The rotor in a centrifuge has an initial angular speed of 430 rad/s. After 4.1 s of constant angular acceleration, its angular speed has increased to 540 rad/s. What was the angle through which it turned
An iron bar 40 cm long is braised to a copper bar 50 cm long and of the same diameter. What is the heat flow down the rod if its cross-sectional area is 2.50 cm2
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