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The intensity of the sunlight that reaches Earth's upper atmosphere is approximately 1465 W/m2.
(a) What is the average energy density?
J/m3
(b) Find the rms values of the electric field and magnetic field.
Erms = V/m Brms = T
An object of mass M = 3.5 kg slides from rest a distance d = 6 m down a frictionless inclined plane where it encounters a spring. When the block just touches the spring, how much gravitational potential energy has it lost
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However, the current increases by just 0.11 A when R1 is removed, leaving R2 connected across the battery. Find (a) R1 and (b) R2.
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how many joules of potential energy does 1.5-kg book gain when it is elevated 2 m? when it is elevated 4 mlet g 10
The tub of a washer goes into its spin-dry cycle, starting from rest and reaching an angular speed of 2.0 rev/s in 8.0 s. Through how many revolutions does the tub turn during this 21-s interval
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