What is the power in watts of the heat engine
There are 200 students riding bikes each producing 110W of heat out put which is used for a heat engine which has an efficiency of 44.1% runing between 30c and -5c. what is the power in watts the heat engine.
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A student throws a set of keys vertically upward to her sorority sister, who is in a window 2.50 m above. The second student catches the keys 2.00 s later. (a) With what initial velocity were the keys thrown?
The heat capacity of silver, measured at a temperature of 4 K, is 0.0134 J/(mole ·K). The Debye temperature of silver is 225 K. What is the lattice contribution (in J/(mole ·K)) to the heat capacity of silver at 2 K?
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Find the direction of the velocity of these free-spirited otters right after they collide.
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Water vapor consists of nonlinear polyatomic molecules, so all three rotational modes are excited at ordinary temperatures. What is the thermal kinetic energy of 8.0 mole(s) of water vapor at 193C?
What is the net force exerted by these two charges on a third charge q3 = 46.5nC placed between q1 and q2 at x= -1.095m ?
You shoot a ball of mass 50g into a pendulum arm of mass 200g, whose center of mass rises 15cm. Calculate the initial velocity of ball.
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