Physics, 13.12.2019 22:31 dorianhenderson987
Andy and charlie are riding on a merry-go-round. andy rides on a horse at the outer rim of the circular platform, twice as far from the center of the circular platform as charlie, who rides on an inner horse. when the merry-go-round is rotating at a constant angular speed, which of the following best describes andy's angular speed? '
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, 22.06.2019 18:00
Cells in the nervous system have a potential difference of 70 mv across the cell membrane separating the interior of the cell from the extracellular fluid. this potential difference is maintained by ion pumps that move charged ions across the membrane. is this an emf? select the correct answer and explanation. 1)no. the ion pumps cannot separate charges; thus, they cannot create a potential difference. 2)yes. the ion pumps cannot separate charges, but they still can create a potential difference. 3)yes. the ion pumps can actively separate charge; thus, they can create a potential difference. 4)no. the ion pumps can separate charges, but they cannot create a potential difference.
Answers: 1
Physics, 23.06.2019 00:00
You are standing on a boat. which of the following strategies will make the boat start moving? a. pushing the mast b. throwing some cargo out of the boat c. pushing the front ofthe boat d. pushing another passenger
Answers: 3
Andy and charlie are riding on a merry-go-round. andy rides on a horse at the outer rim of the circu...
English, 04.03.2021 01:00
Computers and Technology, 04.03.2021 01:00
Mathematics, 04.03.2021 01:00
World Languages, 04.03.2021 01:00
History, 04.03.2021 01:00
Mathematics, 04.03.2021 01:00
Chemistry, 04.03.2021 01:00