As you fly up through the troposphere into the stratosphere, what would you expect? a. temperature would stop decreasing b. temperature would remain constant c. encounter the ozone layer d. encounter turbulent air currents (multi-choice)

Free runners jump long distances and land on the ground or a wall. how do they apply newton’s second law to lessen the force of impact?

An athlete is holding 24 lb of weights at a height of 6 inches above the stack as shown. to lower the weights, she applies a constant force of 5 lb to the handle. determine the velocity of the weights immediately before they hit the stack.

It may seem strange that the selected velocity does not depend on either the mass or the charge of the particle. (for example, would the velocity of a neutral particle be selected by passage through this device? ) the explanation of this is that the mass and the charge control the resolution of the device--particles with the wrong velocity will be accelerated away from the straight line and will not pass through the exit slit. if the acceleration depends strongly on the velocity, then particles with just slightly wrong velocities will feel a substantial transverse acceleration and will not exit the selector. because the acc