10. A 5.0 g pellet is placed in the barrel of a toy gun and is propelled by a spring of force

constant 50. N/m. The spring is compressed 20. cm and then released. Calculate the

maximum velocity of the pellet when shot horizontally.

At time t = 0, a 2150-kg rocket in outer space fires an engine that exerts an increasing force on it in the + x-direction. This force obeys the equation F = At^2, where t is time, and has a magnitude of 781.25 N when r = 1.25 s.

What happens to the particles of a gas when the gas turns into a liquid? A. the particles are melting B. the particles are boiling C. the motion of the particles is slowing down D. the motion of the particles is speeding up

beam of light, traveling in air (the index of refraction for air is 1), strikes the surface of mineral oil at an ngle of 30° with the normal to the surface. (the index of refraction for this mineral oil is 1.

Why would it be a disadvantage to wire a house using all series circuits? A In order to turn on one device (such as a TV), you would need to turn on every device in the house that is on the same line. B It would increase the risk of fire.

Georgia is jogging with a velocity of 4 m/s when she accelerates at 2 m/s2 for 3 seconds. How fast is Georgia running now?

Which of the following has the greatest amount of kinetic energy a) slice of pizza b) a person at the top of the stairs c) wind d) a book on a table

Physical properties within a period are more alike than physical properties within a group. True false

A 50-kg box is resting on a horizontal floor. A force of 250 N directed at an angle of 30.0° below the horizontal is applied to the box. The coefficient of static friction between the box and the surface is 0.

As you heat a steak on a grill, what kind of energy are you increasing in the steak?

If Anya decides to make the star twice as massive, and not change the length of any crossbar or the location of any object, what does she have to do with the mass of the smiley face to keep the mobile in perfect balance?