How many calories of heat are required to raise the temperature of 4 kg of water from 50°F to the boiling point?
a. 6.5 × 10^5
b. 3.6 × 10^5
c. 15 × 10^5
d. 360
e. 4 × 10^4
B
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The number of protons in a nucleus equals the number of neutrons
a. True b. False Indicate whether the statement is true or false
A diamond is the hardest mineral on Earth, yet it is mostly empty space because the carbon atoms are
A. held together by electrical forces. B. themselves mostly empty space. C. not as close together as they should be. D. in perpetual motion.
How is the energy stored in a current-carrying inductor related to its self-inductance, L?
a. directly proportional to L2 b. directly proportional to L1/2 c. directly proportional to L d. inversely proportional to L
A space vehicle accelerates uniformly from 65 m/s at t = 0 to 162 m/s at t = 10.0 s. How far did it move between t = 2.0 s and t = 6.0 s?
What will be an ideal response?