A train travels 90 kilometers in 2 hours, and then 66 kilometers in 2 hours. What is its average speed?

Why are curse words called "bad words" are they possessed?

How is solubility of a gas affected when an increase of pressure occurs?

Two in-phase loudspeakers are placed along a wall and are separated by a distance of 4.00 m. They emit sound with a frequency of 514 Hz. A person is standing away from the wall, in front of one of the loudspeakers.

A 1200-kilogram space vehicle travels at 4.8 meters per second along the level surface of Mars. If the magnitude of the gravitational field strength on the surface of Mars is 3.

A ball is thrown downward from the top of a 55.0 m tower with an initial speed of 15.0 m/s. Assuming negligible air resistance, what is the speed of the ball just before hitting the ground?

For each of the following, describe the relationship as directly or inversely proportional: a) wavelength vs. frequency b) wavelength vs. energy c) frequency vs. energy ... ?

Can hand sanitizer be used as rubbing alcohol

Two objects experience a 12 N electrical force between them. What force will the objects experience if the distance between them is doubled?

a submarine moving directly upward in the water at constant speed. The weight of the summer and it is 500,000 N. The submarines motors are off. The magnitude of the buoyant force acting on the submarine is

If the car went 30 km west in 25 min. and then 40 km east in 35 min., what would be its total displacement?