One of your summer lunar space camp activities is to launch a 1130 kg1130 kg rocket from the surface of the Moon. You are a serious space camper and you launch a serious rocket: it reaches an altitude of 215 km215 km . What gain ΔΔU in gravitational potential energy does the launch accomplish? The mass and radius of the Moon are 7.36×1022 kg7.36×1022 kg and 1740 km,1740 km, respectively.
Answers: 3
Physics, 21.06.2019 18:50, NycLife
How does the image distance (di) of a convex lens compare with the image distance of a concave lens? a. the image distance of the convex lens is positive, and that of the concave lens is negative. b. both are negative for a virtual image. c. both are positive for a virtual image d. the image distance of the convex lens is negative, and that of the concave lens is positive.
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 18:40, mckennacwilliams
Smallest intensity of a stimulus that you can detect 50 percent of the time is
Answers: 1
One of your summer lunar space camp activities is to launch a 1130 kg1130 kg rocket from the surface...
English, 23.05.2020 00:07
English, 23.05.2020 00:07
Mathematics, 23.05.2020 00:07
Chemistry, 23.05.2020 00:07