Physics, 03.02.2020 21:56 valerieaj113
Which of these statements best describes an effect of changes in earth's magnetic field?
southern lights are seen at high altitude places like alaska.
northern lights are seen at low latitude places like michigan.
the solar wind moves away from earth towards other planets.
the magnetic north and south poles of earth are interchanged.
Answers: 3
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A2000 kg car is rounding a curve of radius 200 m on a level road. the maximum frictional force the road can exert on the tires of the car is 4000 n. what is the highest speed at which the car can round the curve?
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The atoms in a nickel crystal vibrate as harmonic oscillators with an angular frequency of 2.3 × 1013 rad/s. the mass of a nickel atom is 9.75 × 10-26 kg. what is the difference in energy between adjacent vibrational energy levels of nickel? (h = 6.626 × 10-34 j • s, , 1 ev = 1.60 × 10-19 j)
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Suppose you hit your hand against the edge of table. using newton’s third law of motion why does my hand hurt? explain
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Which of these statements best describes an effect of changes in earth's magnetic field?
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