Consists of electric and magnetic disturbances, or waves, that travel through space. human eyes see one form of this energy, called all forms of electromagnetic radiation, including x-rays and radio waves, make up the each type of radiation can be classified in two ways. the distance between the peaks on a wave and is the number of waves that occurs each second. scientists study radiation with telescopes which collect and focus light. the - the opening that gathers light in a telescope, the more light that can be collected.
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Which statement correctly describes a step-up transformer? a. it increases the amount of electric energy available. b. it increases the voltage of an electric current. c. it changes direct current into alternating current. d. it has more loops of wire in its primary coil.
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Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of
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Which of the following statements accurately describes the sign of the work done on the box by the force of the push? a. positive b. negative c. zero
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Consists of electric and magnetic disturbances, or waves, that travel through space. human eyes see...
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