Problem 1: you go outside on a hot, sunny summer day and you feel the warm sun on your skin. what causes this warmth?
a. the sun heats the air directly around your skin.
b. waves of light carry energy directly to your skin.
c. light causes surface waves on your skin.
d. water vapor in the air warms your skin.
problem 2: when a water wave runs into you at the beach, what causes you to get knocked down?
a. air molecules in front of the wave
b. the wave's energy
c. periodic motion
d. friction
Answers: 1
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All the simple machines make work easier to do by changing the or of a force. a. size; type b. work; type c. size; direction d. type; direction
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Which one of the following research methods can show cause and effect
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Atriangle with equal sides of length 10 cm has -2.5-nc charged objects at each corner. part a determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. horizontally rightward vertically downward vertically upward horizontally leftward
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Problem 1: you go outside on a hot, sunny summer day and you feel the warm sun on your skin. what c...
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