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Correct answer
A. kilowatt hour
Explanation
kilowatt hour is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
C. 1
Explanation
1 is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
C. Photon
Explanation
the photon is a massless particle. According to theory it has energy and momentum but no mass, and this is confirmed by experiment to within strict limits. Even before it was known that light is composed of photons, it was known that light carries momentum and will exert pressure on a surface. This is not evidence that it has mass since momentum can exist without mass.
Correct answer
D. 3
Explanation
3 is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. coefficient of performance
Explanation
coefficient of performance is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. J.J.Thomson model
Explanation
J.J.Thomson model is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
D. 1/6th
Explanation
1/6th is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
A. mass
Explanation
mass is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
D. 5 rem per week
Explanation
5 rem per week is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
A. 2 x 10-10 m
Explanation
2 x 10-10 m is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.