Would you be richer if you had a hunk of gold whose weight is 1 newton on the moon, or one whose weight is 1 newton on Earth, and why?
A) 1 newton on the moon, because then the gold's weight on the moon would be larger.
B) 1 newton on the moon, because then the gold's mass would be larger.
C) 1 newton on Earth, because then the gold's mass would be larger.
D) 1 newton on Earth, because then the gold's weight on Earth would be larger.
E) It wouldn't make any difference, because the amount of actual gold would be the same in both cases.
B
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As a 2.0-kg object moves from 
m to 
m, the constant resultant force acting on it is equal to 
align="middle" /> N. If the speed of the object at the initial position is 4.0 m/s, what is its kinetic energy at its final position? A. 62 J B. 53 J C. 73 J D. 86 J E. 24 J
Determine the work done by 5 moles of an ideal gas that is kept at 100°C in an expansion from 1 liter to 5 liters
a. 2.5 × 10^4 J b. 1.1 × 10^4 J c. 6.7 × 10^3 J d. 2.9 × 10^3 J e. 8.4 × 10^3 J
It takes 2.0 minutes to fill a gas tank with 60 liters of gasoline. If the pump nozzle is 1.0 cm in radius, what is the average speed of the gasoline as it leaves the nozzle? (1000 liters = one cubic meter)
a. 0.27 m/s c. 1.6 m/s b. 1.1 m/s d. 64 m/s
Beryl states that insulation with the smallest possible thermal conductivity is best to keep a house warm in winter, but worst for keeping a house cool in summer. Sapphire insists the reverse is true: low thermal conductivity is good in the summer, but bad in the winter. Which one, if either is correct?
A. Beryl, because low thermal conductivity results in low heat transfer. B. Beryl, because low thermal conductivity results in high heat transfer. C. Sapphire, because low thermal conductivity results in low heat transfer. D. Sapphire, because low thermal conductivity results in high heat transfer. E. Neither, because low heat transfer is desirable both in summer and in winter.