Mechanical (sound) waves are unable to travel through a vacuum, such as through space, but radio waves are transmitted to earth from satellites. how is this possible? a)radio waves are electromagnetic waves. b)satellites are located within our atmosphere. c)radio waves are very high energy mechanical waves. d)radio waves are changed to gamma rays for transmission.
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The speed of light in a material is 0.50 c. what is the critical angle of a light ray at the interface between the material and a vacuum?
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Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt
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In the illustration, which two simple machines are being used to enable the student to reach the door? a. inclined plane and pulley b lever and wheel-and-axle c pulley and lever d wheel-and axle and inclined plane
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Mechanical (sound) waves are unable to travel through a vacuum, such as through space, but radio wav...
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