A 1.20 g sample of an unknown has a volume of 1.73 cm what is the density of the unknown

The potential energy of a catapult was completely converted into kinetic energy by releasing a small stone with a mass of 20 grams. The velocity of the stone when it reached the target was 15.0 meters/second.

What is the wavelength of a soundwave moving at 340 m/s with a frequency of 265 Hz?

Does voltage vary or the same in a series circuit

G: assume that, at a certain angular speed ω2, the radius r becomes twice l. find ω2.

When is the tide the highest

A ray of yellow sodium light enters water from air with an angle of incidence of 45°. What is the angle of refraction?

As a car drives with its tires rolling freely without any slippage, the type of friction acting between the tires and the road is

Which involves grouping items together because they are alike in some way?

Which of the following represents a concave lens

A train travels at a speed of 30 miles/hour and traveled a distance of 240 miles. How long did it take the train to complete its journey?