Physics, 08.08.2019 23:30 treyhunt5362
From doppler shifts of the spectral lines in the light coming from the east and west edges of the sun, astronomers find that the radial velocities of the two edges differ by about 4 km/s, meaning that the sun’s rotation rate is 2 km/s. find the approximate period of rotation of the sun in days. the circumference of a sphere is given by 2πr, where r is the radius of the sphere.
Answers: 2
Physics, 21.06.2019 14:40
A50.0-n box is sliding on a rough horizontal floor, and the only horizontal force acting on it is friction. you observe that at one instant the box is sliding to the right at and that it stops in 2.25 s with uniform acceleration. what magnitude force does friction exert on this box
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Physics, 22.06.2019 08:30
An automobile steering wheel is shown. what is the ideal mechanical advantage? if the ama is 8, what is the efficiency of the steering wheel?
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Physics, 22.06.2019 14:40
On a geologic map, if the contacts between sedimentary rock units form a bull’s-eye pattern of concentric circles, with the youngest unit in the center, the underlying structure is a(n)
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Physics, 22.06.2019 17:40
A15.75-g piece of iron absorbs 1086.75 joules of heat energy, and its temperature changes from 25°c to 175°c. what is the specific heat capacity of iron?
Answers: 1
From doppler shifts of the spectral lines in the light coming from the east and west edges of the su...
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