Hilda pushes her sofa across the room with a force of 40 n. it accelerates at 2 m/s/s. what is the mass of the sofa?
2 kg
20 kg
40 kg
80 kg
keiko is riding a skateboard 2 m/s, west. how long will it take her to reach a velocity of 8 m/s, west if her acceleration is 2 m/s2?
3 seconds
6 seconds
8 seconds
10 seconds
Answers: 2
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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.
Answers: 3
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Asmall 21 kilogram canoe is floating downriver at a speed of 1 m/s. what is the canoe's kinetic energy?
Answers: 1
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Which lists the organs in the correct order as food passes from the mouth to anus?
Answers: 1
Hilda pushes her sofa across the room with a force of 40 n. it accelerates at 2 m/s/s. what is the m...
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