A pendulum makes 40 vibrations in 20 seconds. Calculate the period?

He atmosphere is heated both by the Sun and by the Earth's surface. Water radiates heat differently than land, so the air temperature over the ocean is usually different than the air temperature over land.

In which state of matter are water molecules measured as having the lowest temperature?

Which of the following is the name for matter made up of only one type of atom? Compound Mixture Element Suspension

A device that makes work easier by changing the size or direction of a force is called what?

All objects are attracted to each other by the force of

If a space ship is traveling with a constant acceleration of 75 m/s^2 and travels for three weeks, how far did it travel and what was it's velocity before it stopped?

How could you change your track to maximize the kinetic energy of the skater? Explain?

3. However, until 2002, these three countries used different A. currents B. undercurrent C. currencies D. currency E. crosscurrent F. current G. currently

In the hydrologic cycle, water evaporates into the atmosphere. It then condenses and falls to the ground as precipitation. How can the water return to the atmosphere?

List 6 Physical properties List 6 Chemical properties