The angular velocity in rad/s if the minute hand of a watch is:

Which scientists supported the heliocentric model of the solar system? Check all that apply. Aristotle Copernicus Galileo Kepler Ptolemy

When you are I'm bed asleep, are you in motion? explain.

If a Mack truck and Honda Civic have a head-on collision, upon which vehicle is the impact force greater?

The biggest advantage to using radioisotopes over other forms of energy, such as coal, natural gas or petroleum is that.

Which years had the least sunspot activity?

Steam moves into a cylinder of a steam engine at a constant pressure and does 2.34 J of work on a piston. The diameter of the piston is 3.4 cm and the piston travels 4.6cm. What is the pressure of the steam?

Identify each type of simple machine.

A car's speedometer reads 20 m/s after accelerating, from a standing start, for 25s. What was the magnitude of its acceleration?

What happens to the period of a pendulum and the period of a spring as the amplitude of the oscillation increases? Briefly give an explanation for this relationship.

The element that is most abundant in earth is