A tank with a constant volume of 2.07 m^3 contains 15.5 moles of a monatomic ideal gas. The gas is initially at a temperature of 300 K. An electric heater is used to transfer 58400 J of energy into the gas. It may help you to recall that CV = 12.47 J/K/mole for a monatomic ideal gas, and that the number of gas molecules is equal to Avagadros number (6.022 *10^23) times the number of moles of the gas. Required:
a. What is the temperature of the gas after the energy is added?
b. What is the change in pressure of the gas?

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

Suppose a soccer ball is kicked from the ground at an angle 20.0º above the horizontal at 8.00 m/s. the y-velocity is determined to be 2.74 m/s. how long will the ball be in the air? assume the ball lands at the same height at which it was kicked.

Astone is dropped from the upper observation deck of a tower, 250 m above the ground. (assume g = 9.8 m/s2.) (a) find the distance (in meters) of the stone above ground level at time t. h(t) = (b) how long does it take the stone to reach the ground? (round your answer to two decimal places.) s (c) with what velocity does it strike the ground? (round your answer to one decimal place.) m/s (d) if the stone is thrown downward with a speed of 2 m/s, how long does it take to reach the ground? (round your answer to two decimal places.) s