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, 22.06.2019 05:00
Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?
Answers: 2
Physics, 22.06.2019 13:00
Acertain radio station broadcasts radio waves that have a wavelength of 298cm what is its broadcast frequency?
Answers: 3
Physics, 22.06.2019 15:30
Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge, at the position of the second charge, change if the second charge is doubled? a. the field does not change b. the field strength decreases by half. c. the field strength doubles d. the field strength quadruples
Answers: 1
Which describes radioactive decay of a substance?...
Geography, 16.09.2019 07:50
History, 16.09.2019 07:50
Social Studies, 16.09.2019 07:50
Social Studies, 16.09.2019 07:50
Chemistry, 16.09.2019 07:50
English, 16.09.2019 07:50
Social Studies, 16.09.2019 07:50
Computers and Technology, 16.09.2019 07:50
Health, 16.09.2019 07:50
Mathematics, 16.09.2019 07:50
Biology, 16.09.2019 07:50
World Languages, 16.09.2019 07:50
Arts, 16.09.2019 07:50