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Q.3. In 1965 Penzias and Wilson discovered the cosmic microwave radiation left over from the Big Bang expansion of the universe. The energy density of this radiation is 7.27 × 10^?14 J/m3.The speed of light 2.99792 × 10^8 m/s and the permeability of free space is 4? ×10^?7 N/A2. Determine the corresponding electric field amplitude. Answer in units of V/m.
What is the velocity of the gold pack after the collision. what least average speed must it have in the second half of the event in order to qualify.
The driver of a car wishes to pass a truck that is travelling at a constant speed of 20 meters per second. Initially, the car is also travelling at 20 meters per second and its front bumper is 24 meters behind truck's rear bumper.
A particle with a mass of 4.10 × 10-20 kg is oscillating with simple harmonic motion with a period of 2.9 × 10-5 s and a maximum speed of 2.3 × 103 m/s.
A 2 200-kg pile driver is used to drive a steel I-beam into the ground. calculate the average force the beam exerts on the pile driver while the pile driver is brought to rest
A tank of water 3.00m deep sits on a table 1.00 m tall. A hole is located 2.0m from the bottom of the tank. Water flows out of hole and strikes the ground. Where does it strike the ground.
In a particular x-ray tube, an electron approaches the target moving at 1.10 108 m/s. It slows down on being deflected by a nucleus of the target, compute the final speed of the electron
The middle C string on a piano is under a tension of 944N. The period and wavelength of a wave on this string are 3.82 ms, calculate the linear density of the string
Both drawings show the same square, each of which has a side of length L = 0.82 m, Find the single smallest frequency that will produce both constructive interference in drawing 1 and destructive interference in drawing 2
A thin ring of radius R carries a charge 3Qdistributed uniformly over three-fourths of its circumference, and -Q over the rest
Calculate the moment of inertia and the rotational kinetic energy for the following objects spinning about a central axis
A loudspeaker of mass 15.0 is suspended a distance of h = 2.30 below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.30. What is tension in each cable.
What greatest height above the break free point does it rise? How high is the break free point above ground.
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