How can you make the work output of a machine greater than the work input

The property of matter that determines the direction of heat flow is the

What is causing the earth to be heated so unevenly

Explain how the isotopes of an element are alike and how are they different

A thin metal disk is heated altering its size, but not its shape. As the disk is heated its radius increases at a rate of 0.04 mm/sec. How fast is the disk's area changing when the radius is 225 mm

People could not walk without friction. what friction are we talking about here, kinetic friction or static friction?

Stars set about how many minutes earlier each day? A. 8 B. 6 C. 4 D. 2

Whose atomic theory explains how atoms emit and absorb light

Closed clusters are groups of closely grouped stars that are located along the spiral disk of a galaxy. a. True b. False

Five forces are exerted on a box as follows: 10 N south 20 N north 50 N east 35 N west 15 N west. What is the resultant force?

A 1 kg particle moves upward from the origin to (23) m. Wit is work done by the force of gravity which is in - y direction s B. 19,6 D. 29.4) A.-19.6 J C. - 29.4 J