Physics, 02.12.2020 22:10 choltox8840
A plane goes from rest, 0.0 m/s, to a velocity of 400 m/s in a total time of 80 s. What is the planes
acceleration? (a-(V - V)/t)
1
Answers: 3
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 03:00
If you visited mount shasta city (elevation 900 m [3000 ft.]) and found the outside air temperature to be 27ยฐc (81ยฐf), what would be the air temperature at the summit of mount shasta (elevation 4200 m [14,000 ft.]) at that moment-assuming that the temperature conditions with altitude change at an average, or normal, lapse rate?
Answers: 3
Physics, 23.06.2019 04:31
Ahockey puck sliding along frictionless ice with speed v to the right collides with a horizontal spring and compresses it by 3.0 cm before coming to a momentary stop.
Answers: 2
A plane goes from rest, 0.0 m/s, to a velocity of 400 m/s in a total time of 80 s. What is the plane...
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