What is the only force acting on an object orbiting Earth?

A. air resistance

B. friction

C. inertia

D. gravity

If i measure the parallax of a star to be 0.125 arc seconds, what is its distance in parsecs?

What is the maximum frequency a human eardrum is able to perceive?

A rock is dropped from a cliff. What will eventually happen to the rock's motion? A. Gravity will cause the rock to slow down before it reaches Earth. B. Air resistance will cause the rock to accelerate as it falls. C.

What part of an atom determines its size

What is the important ingredient in bullet proof glass?

If you hit a wall, will the force that you exert on the wall be greater than, or less than, or equal to the force that the wall exerts on you. Explain your answer.

Which waves can u see

How does the weight of a rocket affect the height and distance?

A disturbance that moves through space and time is called a ___.

Angela sees a puzzle that uses a board with 20 holes drilled into it. There are 18 pegs in the holes, and the goal of the puzzle is to move the pegs by hopping them into the open holes until both holes are at one end of the board.