A hammer is accidentally dropped from a scaffold where a crew is working. It takes the hammer 2.5 s to hit the ground. How high is the scaffold?

Two technicians are discussing torque wrenches. Technician A says that a torque wrench is capable of tightening a fastener with more torque than a conventional breaker bar or ratchet.

Electromagnetic waves emitted by an omnidirectional broadcast antenna on Earth strike a 4.23-m^2 flat surface that forms part of an artificial satellite that is located 251 km from the antenna.

If you break a bar magnet in half, each half a) contains one magnetic pole b) becomes a bar magnet with two poles c) becomes unmagnetized d) is only temporarily magnetized

Through which one of the following mediums is the velocity of a sound wave the greatest? A. Steel B. Water C. Air D. Lead

What colors of visible light do green plant leaves absorb the most? A. green and red B. red and blue C. blue and green D. green and violet

Explain why the car reaches a top speed even though the thrust Force remains constant at 3500N

4. A helicopter is flying at a height of 1.5km. If it has 50MJ of G. P. E., what is the mass of the helicopter?

Unless otherwise posted, what is the speed limit in a school zone? florida

If you put in 10 J of work to push 1 c of charge against and electric field what will be its voltage with respect to its starting position? when released, what will be it's kinetic energy if it flies past it's starting position?

The process of changing the energy of a system by means of force. Force * Diatance