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How are calculation for velocity and speed different

Which safety measures should you follow during a thunderstorm? check all that apply. (a) avoid touching anything that conducts electricity. (b) avoid touching a person who has been struck by lightning. (c) go outside. (d) keep your computer turned off. (e) stay out of water. (f) stay inside.

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is