Physics, 26.08.2019 23:30 andrewlawton8125
Spiral galaxy rotation curves are generally fairly flat out to large distances. suppose that spiral galaxies did not contain dark matter. how would their rotation curves be different? (a) the orbital speeds would fall off sharply with increasing distance from the galactic center.(b) the rotation curve would be a straight, upward sloping diagonal line, like the rotation curve of a merry-go-round.(c) the orbital speeds would rise upward with increasing distance from the galactic center, rather than remaining approximately constant.(d) the rotation curve would look the same with or without the presence of dark matter.
Answers: 3
Physics, 21.06.2019 14:00
Consider a resistor with color code “orange blue brown gold” and a measured value of 370 ω. determine the following: nominal value, tolerance, % error, and the probability of another resistor from the same manufacturing batch having a value closer to nominal than this one. use matlab or excel to evaluate the erf function.
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Physics, 22.06.2019 12:10
Point charges q1 = 51 µc and q2 = −27 µc are placed 1.0 m apart, with q2 on the right. what is the force (in n) on a third charge q3 = 19 µc placed midway between q1 and q2? (assume the positive direction is to the right. indicate the direction with the sign of your answer.)
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Physics, 22.06.2019 17:00
How much energy is supplied to each coulomb of charge that flows through a 12-v battery?
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Physics, 22.06.2019 21:00
How is the acceleration of an object in uniform circular motion constant? a - in magnitude only b - in direction only c - in both magnitude and direction d - in magnitude, direction & orientation
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Spiral galaxy rotation curves are generally fairly flat out to large distances. suppose that spiral...
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