Which three statements describe electromagnetic waves?
A. They can transfer energy through a vacuum
B. They radiate outward in all directions
C. They vibrate in two directions that are perpendicular to eachother
D. They vibrate parallel to the direction in which the wave travels
Answers: 1
Physics, 22.06.2019 22:40
Which of the following is a direct benefit of the use of assembly lines in production a. laws against theft fraud and coercion are needed to protect free choice. b. the government needs to plan efficient outcomes. c. competition among producers by itself cannot ensure a wide range of consumer choices. d. works pressure the government to guarantee minimum wages
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Physics, 23.06.2019 13:30
On his honeymoon, james joule attempted to explore the relationships between various forms of energy by measuring the rise of temperature of water which had fallen down a waterfall on mount blanc. what maximum temperature rise would one expect for a waterfall with a vertical drop of 20 m? the specific heat of water is 4186 j/kg ∙ k. a)0.064 c° b)0.053 c° c)0.071 c° d)0.047 c°
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Physics, 23.06.2019 17:30
Aman walks foward on a bus. to a stationary obserrver, the bus moves east at a speed of 13 m/s if the man moves 0.7 m/s east relative to the bus. what is his velocity in the frame of reference of a stationary observer?
Answers: 1
Which three statements describe electromagnetic waves?
A. They can transfer energy through a vacuum...
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