Lindsey throws a hard rubber ball against a wall. Describe the forces that act on the ball when it hits the wall and how the forces affect the motion of the ball. How do the action force and reaction force compare?

Oceanic electric fields produce electric currents. True False

Which is the kinetic energy of a 1.0-kg billiard ball that moves at 5.0m/s? A: 5.0 J B: 6.5 J C: 10.0 J D: 12.5 J

Magnetic field strength about a magnet is strongest where magnetic field lines are

The gravitational force between two objects depends on masses of objects and

Two disks are rotating about the same axis. Disk A has a moment of inertia of 3.3 kg · m2 and an angular velocity of + 6.6 rad/s. Disk B is rotating with an angular velocity of - 9.3 rad/s.

Consider this statement: Air is matter. Which facts best support the statement? A. Balloons can be filled with air. B. Air is essential for life to exist. C. Air has mass. D. Air is not an element. E. To float on air is to be happy. F.

Hydroelectric power uses: wind water coal the sun

Two lightweight metal spheres are suspended near each other from insulating threads. One sphere has a net charge; the other sphere has no net charge. The spheres will: A. Attract each other B. Exert no electrostatic force on each other C.

Read the given list of organisms. squirrel, zebra, tortoise, rabbit, horse What best describes the role of these five organisms in a food web?

What are the SI units for specific heat capacity