Physics, 02.07.2019 18:30, christeinberg1
Atrain travels 51 kilometers in 1 hours, and then 72 kilometers in 5 hours. what is its average speed?
Answers: 1
Physics, 20.06.2019 18:04, xuzixin2004
In what direction does an applied force move an object? in the same direction as the force independent of the force in the opposite direction of the force perpendicular to the force
Answers: 1
Physics, 22.06.2019 14:40, henryzx900
An athlete is holding 24 lb of weights at a height of 6 inches above the stack as shown. to lower the weights, she applies a constant force of 5 lb to the handle. determine the velocity of the weights immediately before they hit the stack.
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
Atrain travels 51 kilometers in 1 hours, and then 72 kilometers in 5 hours. what is its average spee...
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