According to the scientific definition, which is not an example of work?
a. opening the refrigerator door
b. pushing against a car without moving it
c. lifting a book off a desk
d. pulling socks out of the dryer

A30 kg weight lies on top of a massless piston of area a = 0.01 m2 the exterior air is at a (constant) p =1 atm and t = 27 c. the interior gas is 0.4 moles of (ideal) n2 and it has initial temperature 27.00 degrees c. 1. what is the initial pressure in the interior? a. 29.4 kpa b. 130.7 kpa c. 101.3 kpa the next three questions concern what happens when an amount of heat q is slowly added to the interior, raising the piston by 1 mm and raising the interior temperature to 27.40 c

Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?

Atomic nuclei of almost all elements consist of