Physics, 09.01.2020 04:31, girlwholikesanime
Asmall ball with a mass of 60.0 g is loaded into a spring gun,
compressingthe spring by 12.0 cm. when thetrigger is pressed the
ball emerges horizontally from the barrel ata height of 1.40 m
above the floor. itthen strikes the floor after traveling a
horizontal distance of2.20 m. use g = 9.80 m/s2.assuming
all the energy stored in the spring is transferred to theball,
determine the spring constant of the spring.
Answers: 3
Physics, 22.06.2019 21:10, palomaresmitchelle
Select the best definition for wavelength. the height of an oscillating electromagnetic wave the rate at which electromagnetic waves oscillate. the distance between two crests of an electromagnetic wave. the oscillations of electric and magnetic fields select the best definition for frequency. the oscillations of electric and magnetic fields. the height of an oscillating electromagnetic wave. the distance between two crests of an electromagnetic wave. the rate at which electromagnetic waves oscillate
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
Physics, 23.06.2019 20:00, yiyirojastorres
An olympic runner leaps over a hurdle. the acceleration of gravity is 9.81 m/s2 . if the runner’s initial vertical speed is 2.0 m/s, how much will the runner’s center of mass be raised during the jump?
Answers: 1
Asmall ball with a mass of 60.0 g is loaded into a spring gun,
compressingthe spring by 12.0 c...
compressingthe spring by 12.0 c...
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