Physics, 27.05.2021 22:10 christinafish9303
19. A stone with a mass of 0.5 kg falls from a
cliff. The stone was initially at rest when it began
falling. Calculate the height from which the stone
must fall in order for the kinetic energy of the
stone to be 200 J just before it hits the ground. (g
= 9.81 m/s?). Round your answer to two decimals
and show the correct units of measure.
Answers: 3
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Much of the information taught in earth-space science would not be available if it weren’t for our remote sensing abilities. explain two ways our remote sensing strategies contribute to our knowledge of these topics.
Answers: 3
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Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.
Answers: 2
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Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?
Answers: 3
19. A stone with a mass of 0.5 kg falls from a
cliff. The stone was initially at rest when it began...
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