The science class built a robot that travels 5 m north in 10 s. what is the robot's average velocity?
a. 0.5 m/s
b. 0.5 m/s north
c. 2 m/s
d. 50 s/m north

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

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

Inside of a windmill or a dam is a that is used to transform one type of energy into electrical energy. a. motor b. generator c. transformer d. power pack