El resorte en una máquina de Pinball tiene una constante de resorte (constante de resorte = k) de 120 [N/m]. La masa del pinball es 0.010 [kg]. La bola sale del émbolo con una
velocidad de 0.3 (m/s). Suponga que la energía se conserva totalmente, calcule la
compresión, x, del resorte.
EPER
KE = 1.my
= 1.kox?
Given:
KE = 4 • my
Formula:

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?