If the velocity of a 440 Hz sound is 1,265 ft/s in the air and 5,990 ft/s in seawater, find the wavelength of this sound in (a) air and ft (b) seawater. Ft

What are the functions of proteins in organisms?

What is impossible for a machine to do? A) do a greater amount of work than the amount of work done on the machine B) apply a force in a direction that is different than the direction of the force applied to the machine C) move an object a greater

How to calculate gravitational potential energy?

A bond formed by the attraction between positively charged metal ions and the electrons around them. a. Metallic bond b. Polyatomic ion c. Covalent bond

The length of days and nights at any location on Earth depends on the Earth's position with respect to the sun. Sydney is at latitude 34°00'S.

Imagine that you replace the block in the video with a happy or sad ball identical to the one used as a pendulum, so that the sad ball strikes a sad ball and the happy ball strikes a happy ball.

Under what conditions will an object experience a gravitational force? Under what conditions will an object experience an electric force? Under what conditions will an object experience a magnetic force?

A basketball player pushes down with a force of 34 N on a basketball that is inflated to a gauge pressure of 9 x 104 Pa. What is the diameter of contact between the ball! and the floor?

Match these terms with their definitions: 1. unit of electrical resistance ampere 2. unit of electromotive force or electrical potential ohm 3. unit for measuring the strength of an electric current volt 4. unit of electrical power watt

In which is momentum conserved: an elastic collision or an inelastic collision?