Radioactive isotopes of an atom are:
a. more scarce
b. more stable
c. less stable
d. more abundant

According to newton's second law, when the same force is applied to two objects of different masses, a the object with greater mass will experience a great acceleration, and the object with less mass will experience an even greater acceleration, b. the object with greater mass will experience a smaller acceleration, and the object with less mass will experience a greater acceleration, c. the object with greater mass will experience a greater acceleration, and the object with less mass will experience a smaller acceleration, d. the object with greater mass will experience a small acceleration, and the object with less mass will experience an even smaller acceleration.

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?

The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?