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At the low point in its swing, a pendulum bob with a mass of 1 kg has a velocity of 8 m/s.
(a) What is its kinetic energy at the low point?
J
(b) Ignoring air resistance, how high will the bob swing above the low point before reversing direction?
m
An unstable particle with a mass equal to 3.34*10-27 kg is initially at rest. Find the masses of the fragments
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In creating his definition of horsepower, James Watt, the inventor of the steam engine, calculated the power output of a horse operating a mill to grind grain or cut wood, Calculate the power output, in hp, of a 72-kg human being
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Suppose the horizontal velocity of the wind against a sail is 5.5 m/s parallel to its front surface and 3.3 m/s along its back surface. Calculate the approximate force on a square meter of sail in N
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in your opinion is the earth warming? to what extent do you believe this warming is a result of human activity?your
It is believed that the universe began with a big bang about 17 billion years ago. If the speed of light is 2.99792 × 10^8, what is the maximum possible radius of the observable universe
A solid disk of mass m1 = 9.3 kg and radius R = 0.23 m is rotating with a constant angular velocity of ? = 33 rad/s. find the initial angular momentum of the rod and disk system
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