In which of the following situations are the forces acting on the object balanced? A. A space shuttle travels at a constant speed

B. A hot-air balloon rises into the sky

C. A minivan slows as it approaches a stoplight

D. A skateboarder picks up speed as he skates down a hill

The pressure, volume, and temperature of a mole of an ideal gas are related by the equation pv = 8.31t, where p is measured in kilopascals, v in liters, and t in kelvins. use differentials to find the approximate change in the pressure if the volume increases from 14 l to 14.6 l and the temperature decreases from 375 k to 370 k. (round the answer to two decimal places.)

When you turn on a battery-operated device, an electrical circuit is

James joule carefully measured the difference in temperature of the water at the top and bottom of a waterfall. why did he expect a difference