The height of a horse is sometimes given in units of "hands." Why was this a poor standard of length before it was redefined to refer to exactly 4in.?

At what height does a 1000 kg mass have a potential energy of 1j relative to the ground

Where is the chernobyl nuclear disaster site?

Erosion of the beach is normally a slow process. What is one factor involved in this erosion? A) animal motion B) changing tides C) emptying rivers Eliminate D) building coral reefs

1. in hooke; s law, F = kX, what does the K stand for? A. the constant of gravity B. the elastic constent, a number that tells the relative strangth of the spring C. the amount of force acting on the spring D. the distance the spring stretches 2.

A woman takes her dog Rover for a walk on a leash. To get the little pooch moving forward, she pulls on the leash with a force of 20.0 N at an angle of 37° above the horizontal. How much force is tending to pull Rover forward? A. 20.0 N B. 16.0 N C.

Molecules at room temperature move freely. What happens to the molecules when heat is removed until it freezes? Molecules group together Molecules slow down and contract Molecules speed up and expand Molecules move freely

A spring is used in a lab. It is vibrated at different frequencies and the wavelength is recorded. Using the graph of the data, what is the relationship found between frequency and wavelength? A) Frequency and wavelength are inversely related.

How do you describe the frequency of waves perceived by the observer from the moment the source appears to the moment it disappears?

What causes the stars to appear to move across the night sky?

Two waves collide and the temporary combined waves that results is smaller that the original wave. which term describes this interaction? A. destructive interference B. standing wave formation C. diffraction D. constructive interference