By operating a reversible heat engine with an ideal gas as the working substance in a Carnot cycle and measuring the ratio Qc/Qh, we can calculate
a. n, the number of moles of the ideal gas.
b. the ratio Vc/Vh of the volumes of the ideal gas.
c. the ratio Pc/Ph of the pressures of the ideal gas.
d. the ratio PcVc/PhVh of the products of volumes and pressures of the ideal gas.
e. the value of Avogadro's number.
d
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The magnitude of the charge on an electron is approximately:
A) 1023 C B) 10-23 C C) 1019 C D) 10-19 C E) 109 C
If you swing a bucket of water fast enough in a vertical circle, at the highest point the water does not spill out. This happens because an outward force balances the pull of Earth on the water
A) True B) False
In a partially elastic collision between two objects with unequal mass:
a. the velocity of one will increase by the amount that the velocity of the other decreases. b. the momentum of one will increase by the amount that the momentum of the other decreases. c. the energy of one increases by the amount that the energy of the other decreases. d. the total momentum of the system will decrease.
A 10-g bouncy ball is confined in a 8.3-cm-long box. What is its minimum energy? (h = 6.626 × 10-34 J ? s)
A) 3.2 × 10-46 J B) 9.4 × 10-75 J C) 8.1 × 10-65 J D) 1.3 × 10-20 J