A scientist spends most of his time observing the night time sky and tracking the orbits of planets. Which branch of physical science is he most likely studying?

Which of the diagrams is the correct model for the element beryllium? A) B) C) D)

A man hits a golf ball (0.2 kg) which accelerates at a rate of 20 m/s2. What amount of force acted on the ball?

If you were trying to cross a river with the shortest possible time, would you aim your boat slightly upstream, directly across the river, or slightly downstream?

A ladder placed up against a wall is sliding down. The distance between the top of the ladder and the foot of the wall is decreasing at a rate of 9 inches per second.

A small steel ball rolls counterclockwise around the inside of a 30.0 cm diameter roulette wheel. The ball completes exactly 2 revolutions in 1.20 seconds. What is the ball's angular displacement after 1.

List two instances in life in which you could benefit from using a GPS unit

Technician A states that a speed density system means that the PCM uses MAP, TP, and engine crankshaft speed to calculate the amount of air flowing into the engine.

The law of what energy states that energy cannot be created or destroyed

Which is greater - the average depth of the ocean, or the average elevation of the continents?

When a neutrally charged atom loses an electron to another atom, the result is the creation of