Physics, 26.02.2020 20:39, codycollier
The gravitational force of the Earth pulls down on a stone after someone tosses it off a cliff According to Newton's third law, what is the equal but opposite force in this interaction?
a. there is no equal and opposite force in this case
b. the force of the stone pushing down on the air
c. the force of the stone's gravity pulling up on the Earth
d. the force of air resistance pushing up on the stone
e. The force the stone exerts on the persons hand
Answers: 3
Physics, 22.06.2019 16:30, safiyyahrahman6907
One number is said to be an "order of magnitude" larger than another number if choose one: a. it is 10 times larger. b. it is 5 times larger. c. it is 3 times larger. d. it is 100 times larger. e. it is 2 times larger.
Answers: 1
Physics, 22.06.2019 22:00, crystalclear99
Agirl throws a ball. if the ball's acceleration is 12 m/sec/sec and its mass is 0.5 kg, how much force did the girl apply to the ball?
Answers: 1
Physics, 22.06.2019 22:50, cbogrett
Cyclotrons are widely used in nuclear medicine for producing short-lived radioactive isotopes. these cyclotrons typically accelerate h- (the hydride ion, which has one proton and two electrons) to an energy of 5 mev to 20 mev. this ion has a mass very close to that of a proton because the electron mass is negligible—about 1 2000 of the proton’s mass. a typical magnetic field in such cyclotrons is 1.9 t. (a) what is the speed of a 5.0-mev h-? (b) if the h- has energy 5.0 mev and b = 1.9 t, what is the radius of this ion’s circular orbit?
Answers: 1
The gravitational force of the Earth pulls down on a stone after someone tosses it off a cliff Accor...
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