A ball is dropped from the top of a building.

TEL

When does the ball have the least kinetic energy?

RE

O

just before it hits the ground

-

O

just after it is released

O

half way through the fall

O

after it has hit the ground

The Zacchini family was renowned for their human - cannonball act in which a family member was shot from a cannon using either elastic bands or compressed air.

The electric field of a sinusoidal electromagnetic wave obeys the equation E = (360V/m) sin[ (6.00*1015rad/s) t + (1.96*107rad/m) x ]. What is the amplitude of the magnetic field of this wave? A) 0.06 μT B) 0.23 μT C) 1.10 μT D) 1.20 μT

Which is the mode of the following data? 120, 125, 130, 125, 135

You get to the dive site, put on your gear, and are ready to go under. You check your scuba tank. It is filled to a pressure of about 22,000 kPa (kilopascals) at a temperature of 300 K. The volume of the tank is 25 L.

if the separation between two masses is doubled, does the gravitational force between them increase or decrease? By what factor?

A rectangular loop of wire with sides 0.262 and 0.401 m lies in a plane perpendicular to a constant magnetic field (see part a of the drawing). The magnetic field has a magnitude of 0.

In the system you're inspecting the damper motor isn't working, You decide to see if the damper-postion sensor us sending the proper signal to the which then signals the damper motor. A. heating coil B. duckwork c. energy source D. controller

Which of the following statements does not describe the structure of an atom? a. An atom has a small, dense center called the nucleus. b. Inside the nucleus of an atom are protons and electrons. c. Protons are positively charged sub-atomic particles.

A. Which skill related fitness component is your strongest and weakest?

A 100 N box is placed on an inclined plane that makes a 30° angle with the horizontal. Calculate the component of gravitational force that acts down the inclined plane. A. 25 N B. 50 N C. 87 N D. 100 N