Loggers cut down 2 identical trees. One tree was cut down with a hand saw and one was cut down with an electric saw. Which activity involved more work?

The 20-lb cabinet is subjected to the force F = (3 + 2t) lb, where t is in seconds. If the cabinet is initially moving down the plane with a speed of 6 ft/s, determine how long it takes for the force to bring the cabinet to rest.

The light that plants absorb to preform photosynthesis has a wavelength that peaks near 675nm. express this distance in (a) millimeters and (b) meters.

Cellular telephones use a. radar waves b. very high frequency waves c. very low frequency waves d. microwaves

What's the difference between groups and periods in a periodic table?

An elevator and the people inside have a combined mass of 980 kg in a building where each floor is 3.6 m apart. If the elevator's power rating is 55 kW how long does it take for a trip from the 4th floor to the 8th?

Find out the kinetic energy of a body of mass 2kg moving with the speed of 3m/s

When light waves passes straight through an object, it is called?

One microgram contains how many grams?

While John is traveling along a straight interstate highway, he notices that the mile marker reads 241 km. John travels until he reaches the 134 km marker and then retraces his path to the 167 km marker.

What are the forces that make an object move