A solid ball and a cylinder roll down an inclined plane. which reaches the bottom first? A. The ball reaches the bottom first.
B. The cylinder reaches the bottom first
C. They arrive at the bottom at the same time
D. It depends on the incline of the slope
E. It depends which of the two has the larger diameter
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Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.

Write down two additional questions about earth's magnetic field that will make your presentation more informative.

Suppose that 27 j of work is needed to stretch a spring from its natural length of 6 m to a length of 9 m. (a) how much work is needed to stretch the spring from 12 m to 14 m? j (b) how far beyond its natural length will a force of 78 n keep the spring stretched?