g A system begins at pressure p0 and volume V0. The volume is held constant and a quantity Q1 of heat is added to the system, which increases the pressure to 2p0. A second quantity Q2 is added to the system as it expands at pressure 2p0 to a new volume 2V0. Determine the net change in internal energy of the system. Express your answer in terms of the variables Q1, Q2, p0, and V0.

If an inclined plane is 5 m long and 2 m high, what is its mechanical advantage? a. 2.5 b. 3 c. 7 d. 10

Do you agree with scientist’s prediction about the warming of alaska and other polar regions?

The temperature at a point (x, y) is t(x, y), measured in degrees celsius. a bug crawls so that its position after t seconds is given by x = 6 + t , y = 8 + 1 3 t, where x and y are measured in centimeters. the temperature function satisfies tx(3, 9) = 5 and ty(3, 9) = 4. how fast is the temperature rising on the bug's path after 3 seconds? (round your answer to two decimal places.)