Select all the correct answers. a free-falling golf ball strikes the ground and exerts a force on it. which sentences are true about this situation? a golf ball striking the ground is a collision. the ground exerts an equal force on the golf ball. the ground doesn’t exert a force on the golf ball. the force is zero because the golf ball has little mass.

Apulley with a mechanical advantage of 5 will require you to pull times the amount of rope. a. 1/5 b. 5 c. 10 d. 15

Starting with only the balmer series light (visible light), how could we ensure that the solar panels generate a current that mark can use for his power station? a)by gradually increasing the brightness (amount) of light that we shine on it. b)by gradually increasing the frequency of the light we shine on it. c)by gradually increasing the wavelength of the light that we shine on it.

What will a positive and a negative charge do if they are separated from each other?