Physics, 18.11.2020 03:20 jackie1013fusse
7. In a football game, the running back is running up the field. He starts from rest and runs for 3 seconds
with an acceleration of 2.5 m/s². What was the magnitude of his displacement?
a. 3.75 m
b. 11.25 m
C. 14.25 m
d. 22.5 m
Answers: 1
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A58-kg boy swings a baseball bat, which causes a 0.140-kg baseball to move toward third base with a velocity of 38.0 m/s.
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Two balls, each with a mass of 0.5 kg, collide on a pool table. is the law of conservation of momentum satisfied in the collision? explain why or why not
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When can a theory be modified if a new type of technology allows for new observations that raise new questions? a-immediately, while the questions about the theory are being asked b-after new hypotheses related to the theory are tested in experiments c-only after the new observations disprove all parts of the theory d-while scientists begin to think about how the theory could improve
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Physics, 23.06.2019 01:00
The amount of heat required to change liquid water to vapor at its boiling temperature is 2256 kj/kg. the amount of heat required to change liquid mercury to its vapor state at its boiling temperature is 295 kj/kg. one kg of each substance is currently at its boiling point. how will the amount of thermal energy required to change each substance from a liquid to a gas differ?
Answers: 3
7. In a football game, the running back is running up the field. He starts from rest and runs for 3...
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