A string vibrates at a frequency of 20 Hz. what is its period?

What is the difference between transformation of energy and transfer of energy

Which of the following best explains why an explosive charge in a cannon can cause a cannonball to fly out of the cannon with a high velocity? A. because chemical potential energy can convert to gravitational potential energy B.

4. How will you find the volume of an irregularly shaped object that would dissolve in water?

Where is most of Earths phosphorus located?

What must be applied to move a load?

What is the name of the effect that causes water to travel at an angle to trade winds?

Two books with different masses fall off the same bookshelf. As they fall, which has more kinetic energy and why

Which of the following is an example of convection? a a hot object transferring heat to a cooler one b the rays of the Sun warming the earth c a hot oven warming the air around it d hot air rising and cooler air falling

Bob drove from home to work at 60 mph. after work the traffic was? heavier, and he drove home at 50 mph. his driving time to and from work was 1 hour and 28 minutes. how far does he live from his? job?

How to measure voltage across an ungrounded component with a two channel oscilloscope?