Determine the mechanical energy of this object: a 2-kg pendulum has a speed of 1 m/s at a height of 1/2 meter.

A: 1 J

B: 10.8 J

C: 2 J

D: 9.8 J

What factors would influence a balls ability to conserve energy

Driving to work one morning, you get a flat tire. When using the car jack, you apply 120N of force to the jack and the jack in turn applies 2000N of force to lift the car up. What is the mechanical advantage of the jack?

A man stands on a scale in an elevator as shown here. the force of his weight when the elevator is still is fg downward. suppose the elevator's acceleration downward is 1/4 g. the weight of the man, fs, is what

If you use the same force on a less massive object what happens to the acceleration

Through which of the following ways can heat be transferred?

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