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

A. 9.8 J

B. 11.8 J

C. 2 J

D. 7.8 J

How does an electric motor work

carlis lives 100 m away from his friend home what is his average speed if he reaches his friends home in 50s

How far away is the sun from earth in AU?

How may stars are in the sky

What is the relationship between the line current i l and the phase current i1 in a balanced delta system?

What force keeps a water spider on the surface of water

A 5.0 kg object moving at 5.0 m/s. KE = mv2 times 1/2

Before designing the filter, one must understand the relationship between the output voltage of the circuit and the frequency. For a series RLC circuit, how do the impedances of the circuit elements depend on the frequency? a.

A ball rolls down an incline and off a horizontal ramp. Ignoring air resistance, what force or forces act on the ball as it moves through the air just after leaving the horizontal ramp? a). The weight of the ball acting vertically down.

How many atoms are in a sample of 1.83 moles of potassium (K) atoms? A) 3.04 * 10-24 atoms K B) 3.29 * 1023 atoms K C) 1.10 * 1024 atoms K D) 6.02 * 1023 atoms K