Describe one harmful effect of each of electromagnetic waves:-
1. Radio waves:
2. Microwav...
Physics, 01.03.2020 15:45, loroloco71
Describe one harmful effect of each of electromagnetic waves:-
1. Radio waves:
2. Microwaves:
3. Infrared radiation:
3. Ultraviolent waves:
4. X-rays:
5. Gamma rays:
Answers: 3
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Which one of the following terms is used to indicate the natural tendency of an object to remain at rest or in motion at a constant speed along a straight line? velocity acceleration equilibrium force inertia
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If the work required to stretch a spring 3 ft beyond its natural length is 15 ft-lb, how much work is needed to stretch it 27 in. beyond its natural length?
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Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.
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