Physics, 01.09.2021 19:00 shelley3135
1) A ball is dropped from a height of 20m. Assuming that air resistance is negligible:
i) How fast will it be travelling when it hits the ground?
ii) How long will it take to hit the ground?
Answers: 2
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Which statement is true? a. kepler's laws apply only to the motion of earth. b. kepler's laws can be used to predict eclipses. c. kepler's laws are true for a central force that is directly proportional to distance. d. kepler's laws can be deduced from newton's laws of motion and gravity.
Answers: 2
Physics, 22.06.2019 11:30
Considering only the earth's rotation, determine how much later the asteroid would have had to arrive to put the explosion above helsinki at longitude 25˚ e? this would have obliterated the city.
Answers: 1
Physics, 22.06.2019 14:00
Agraduated cylinder contains 63.0 ml of water. a piece of gold, which has a density of 19.3 g/ cm3, is added to the water and the volume goes up to 64.5 ml. calculate the mass in grams of the gold that was added to the water. explain how you got your answer.
Answers: 3
1) A ball is dropped from a height of 20m. Assuming that air resistance is negligible:
i) How fast...
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