Physics, 29.06.2019 18:00 pennygillbert
Aforce of 75 n at an angle of 15° to the direction of motion moves a chair 3 m. which change would result in more work being done on the chair? using 60 n of force moving the chair 2 m increasing the angle to 20° decreasing the angle to 10°
Answers: 1
Physics, 21.06.2019 22:00
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, 23.06.2019 05:00
Why do some scientists and archeologists think that volta was not the first person to build a battery
Answers: 2
Physics, 23.06.2019 07:30
Based on the image below what would an observer on the nighttime side of earth observe?
Answers: 1
Physics, 23.06.2019 08:00
How are elastic and inelastic collisions different? give two or more ways. your answer should have at least 2 sentences.
Answers: 1
Aforce of 75 n at an angle of 15° to the direction of motion moves a chair 3 m. which change would r...
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