Which of the following particles has mass? a. protons only b. electrons only c. both protons and electrons

A ball is falling at terminal velocity. Which free body diagram shows the ball falling at termainal velocity

A 25.2 kg gazelle moving 2.33 m/s sees a lion, and exerts a 113 N force to accelerate. How fast is it moving 2.00 s later?

A bus starts to move from rest. if it's velocity becomes 90 km per hour after 8 seconds, calculate it's acceleration (numerical problem)

Two particles move along an x axis. the position of particle 1 is given by x = 9.00t2 + 6.00t + 2.00 (in meters and seconds); the acceleration of particle 2 is given by a = - 8.

Which describes what happens when a balloon is rubbed with a wool cloth? A. Electrons move from the atoms in the cloth to the atoms in the balloon, causing the balloon to have a negative charge. B.

A wave with a frequency of 30 Hz has a wavelength of 40.5 m. How fast is the wave traveling?

A soccer ball is sitting in the middle of a soccer field during a game. When the referee blows his whistle, one of the players runs toward the ball and kicks it as hard as he can.

A body with v=20m/s changes its speed to 28m/s in 2sec. its acceleration will be

Charge: A piece of plastic has a net charge of + 2.00 μC. How many more protons than electrons does this piece of plastic have? (e = 1.60 * 10-19 C)

How much heat is needed to raise the temperature of 6g of water by 18oC?