In the formula vy = ayt, what is the value of ay for an object in projectile motion?
a –9.8 m/s2
b 0 m/s2
c m/s2
d 1.0 m/s2

Which is the best predictor of the radioactive nature of an isotope? o the proton-to-electron ratio the neutron-to-proton ratio o the neutron-to-electron ratio the electron-to-proton ratio

Explain what it means to view something from a frame of reference. provide an example that illustrates your explanation. (4 points)

The total amount of energy contained in an object