Static cling makes your clothes stick together. what causes this to happen? 1. friction created by tumbling clothes 2. the nature of the material 3. external forces to the clothes 4. forces of nature

A mechanical wave generally does NOT A. move through a medium. B. move the medium from one place to another. C. move through solids. D. disturb the medium.

When you move from place to place, how do you know you moved?

A kangaroo hops at an angle of 25° to the horizontal with a velocity of 20 m/s. What is the vertical component of the velocity? A. 8.5 m/s B. 12.5 m/s C. 18 m/s D. 20 m/s

What is the average mass of a neutron? A. 1 amu B. 1,837 amu C. 1/1,837 amu

The spiral review which of the following represents 7 + 7 + 7+7

What trends were seen in Mendeleev's periodic table?

Through which medium would EM waves travel the fastest? A. The Ocean B. The Atmosphere C. Rocks

Average mass of a toy car (small, hot wheels) ?

A cannon directed straight upward launches a ball with an initial speed v. The ball reaches a maximum height h in a time t. Then, the same cannon is used to launch a second ball straight upward at a speed 2v.

Does the sun fuse hydrogen into helium or vice versa?