When two objects collide, they exert forces on each other that change momentum

a. law of conservation of momentum

b. recoil

c. relation of Newton 3rd law to momentum

d. closed system

Which statement best describes the relationship between atoms and nuclear forces?

Near the surface of the moon, the distance that an object falls is a function of time. It is given by d (t) = 2.6667t2, where t is in seconds and d (t) is in feet.

Which of the following devices is made of two different metals and produces a voltage when the metals are exposed to heat? A. An accelerometer B. A photovoltaic cell C. A crystal D. A thermocouple

When you step off a bus moving at 10 m/s, your horizontal speed when you meet the ground is?

Which of these cultures did NOT make major contributions to astronomy? a. Arab b. Icelandic c. Aztec and Maya d. Babylonian and Egyptian

If a car changes its velocity from 32 km/hr to 54 km/hr in 8.0 seconds, what is its acceleration?

Explain why meteorologists compare new weather maps and weather maps that are 24 hours old

Describe the uses of compound pulleys

Why do cities on the East Coast have warmer climates than cities on the West Coast at similar latitudes?

What energy transformations take place when you eat a taco and then go for a jog around the neighborhood?