Physics, 23.12.2019 12:31, nmillsap11
Abowling ball traveling with constant speed hits the pins at the end of a bowling lane 16.5 m long. the bowler hears the sound of the ball hitting the pins 2.50 sec after the ball is released from his hands. what is the speed of the ball? the speed of sound is 340 m/s.
Answers: 3
Physics, 21.06.2019 15:00, ashleypaz15
Aman does 500 j of work pushing a car a distance of 2 m. how much force does he apply? assume there is no friction. a. 250 n b. 1000 n c. 125 n d. 500 n
Answers: 1
Physics, 21.06.2019 22:00, homework2358
There is a theory that indicates that dinosaurs became extinct when about 65 million years ago, a large asteroid hit the earth surface. dust caused by this collision blocked the sunlight reaching the earth's surface and many forms of life became extinct due to the cold. fearing this threat, how large the radius of an asteroid should you be looking for if the dangerous asteroid size is approximately the same as the one that killed the dinosaurs? available data suggests that about 18% of that asteroid's mass ended up as a dust spread evenly over earth after eventually settling out of the upper atmosphere. about 0.0180 g/cm^2 of dust, which is chemically different than the earth's rock, covered the earth's surface. typical asteroids have a density of about 1.9 g/cm^3. now that we know the size of the asteroid, how much energy was released during impact, assuming all of it was just the kinetic energy of the asteroid right before the impact?
Answers: 1
Physics, 22.06.2019 17:00, bella51032
Explain what will happen if decomposers were apsent from a forest ecoysystem.
Answers: 1
Abowling ball traveling with constant speed hits the pins at the end of a bowling lane 16.5 m long....
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