Achild is sitting on a stationary skateboard with a pile of rocks which she throws in one direction in order to make the skateboard travel in the opposite direction. if the rocks each have a mass of 0.40 kg and she can throw them with a speed of 14 m/s relative to the ground, determine the number of rocks she must throw per minute in order to maintain a constant average speed against a 2.1 n force of friction. (note: because this is a rate, the answer may not be a whole number.)
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Physics, 22.06.2019 14:00
Often called simply "velocity," this is the velocity of an object at a particular moment in time.
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When the displacement of a mass on a spring is 12a the half of the amplitude, what fraction of the mechanical energy is kinetic energy? at what displacement, as a fraction of a, is the mechanical energy half kinetic and half potential?
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Calculate the velocity of a car traveling in a straight path due east with a distance of 16 meters in 2 seconds. question 1 options: a)32 m/s b)32 m/s e c) 8 m/s e d) 8 m/s
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Physics, 22.06.2019 22:00
Notice how they put future which of the clouds shown would indicate a possible future rain storm? a) b) c) d)
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Achild is sitting on a stationary skateboard with a pile of rocks which she throws in one direction...
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