The velocity of a 150 kg cart changes from 6.0 m/s to 14.0 m/s. What is the magnitude of the impulse that acted on it?

A wave has a wave length of 20mm and a frequency of 5 hertz. What is the speed?

A tube, open at only one end, is cut into two shorter (nonequal) lengths. The piece that is open at both ends has a fundamental frequency of 422 Hz, while the piece open only at one end has a fundamental frequency of 666 Hz.

Which is the relationship between photon energy and the color of light? A. All colors have the same photon energy. B. Red photons have the most energy. C. Violet photons have the least amount of energy. D. Red photons have the least amount of energy.

Would a bond between potassium and iodine most likely be covalent or ionic? Explain your answer

A cylindrical conductor of length 'l' and area of cross section 'A' has a resistance 'R'. Another conductor of length 2.5l and resistance 0.5R of the same material has area of cross section?

How many total chromosomes do "normal" human body cells have?

In order to make vehicles more energy efficient, what can be done?

In what phase of matter do molecules vibrate but stay in position? A. gas B. liquid c. solid d. plasma

What statement is true about a spring? A. The softer the spring, the greater the force required to restore its position. B. The stiffer the spring, the greater the force required to restore its position. C.

A bus is traveling with a uniform acceleration of 2.75 meters/second2. If the initial velocity of the bus is 16.5 meters/second, what will its velocity be after 9.00 seconds?