1) What is the expected value for total work in each part of the experiment? 2) Why is the total work done so different between parts 1 and 2? 3) Is work necessarily a positive quantity? 4) If you drag a heavy box across a rough floor; is the work done on the box, in dragging it from point A to point B, independent of the path taken? Explain your answer. 5) The force on an object is non-zero. Over some path, the work, done on the object is zero. Is it possible that the object has moved in a straight line? Explain you answer.

The ideal gas model is valid if which of the following conditions is true? the gas density is low. the gas density is high. the temperature is low. the temperature is high. the gas density and the temperature are low. the gas density and the temperature are high. the gas density is high and the temperature is low. the gas density is low and the temperature is high.

If a rock weighing 54 n is submerged in a liquid with a density exactly twice that of water, what will be its new apparent weight reading in the liquid?

Your physics assignment is to figure out a way to use electricity to launch a small 6.0-cm-long plastic drink stirrer. you decide that you'll charge the little plastic rod by rubbing it with fur, then hold it near a long, charged wire, as shown in figure p23.56 . when you let go, the electric force of the wire on the plastic rod will shoot it away. suppose you can uniformly charge the plastic stirrer to 10 nc and that the linear charge density of the long wire is 1.0 x10-7 c/m. what is the net electric force on the plastic stirrer if the end closest to the wire is 2.0 cm away?