Physics, 09.12.2020 22:40, mckenziet73
2. A large rock is ejected from a volcano with a speed of 30m/s and at an angle 60. above
the horizontal. The rock strikes the side of the volcano at an altitude of 10.0m lower than
its starting point. Calculate the horizontal displacement of the rock.
84.90m
Answers: 1
Physics, 22.06.2019 10:00, lorelei7668
(a) calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) imagine adding electrons to the pin until the negative charge has the very large value 1.00 mc. how many electrons are added for every 109 electrons already present
Answers: 3
Physics, 23.06.2019 02:30, elishane864
Aheavy boy and a lightweight girl are balanced on a massless seesaw. the boy moves backward, increasing his distance from the pivot point. what happens to the seesaw? it is impossible to predict without knowing additional information. the side the boy is sitting on will tilt downward. the side the girl is sitting on will tilt downward. nothing; the seesaw will remain balanced.
Answers: 2
2. A large rock is ejected from a volcano with a speed of 30m/s and at an angle 60. above
the horiz...
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