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Correct answer
C. The unit vector in the direction at angle θ with an x-axis
Explanation
The unit vector in the direction at angle θ with an x-axis is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. 103 photons of wavelength 2 pm (γ-rays)
Explanation
103 photons of wavelength 2 pm (γ-rays) is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. all of the above
Explanation
all of the above is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
D. water
Explanation
water is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
D. Special theory of relativity
Explanation
Special theory of relativity is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
D. Speed
Explanation
Speed is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
C. negative
Explanation
negative is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
A. will depend on the type of material of the wire
Explanation
will depend on the type of material of the wire is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
A. Highly penetrating
Explanation
Highly penetrating is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
A. every action there is an equal and opposite reaction .
Explanation
every action there is an equal and opposite reaction . is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.