Wo people on skates, one with a mass of 61 kg and the other with a mass of 40 kg, stand on ice (frictionless surface) holding a 10 m pole (negligible mass). The skaters pull themselves from the end of the pole until they meet. How far does the 40 kg skater move.

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.

According to newton’s first law of motion, which force is expected to cause a body to accelerate?

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