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If the original electric field is 3.00 x10-4 N/C and the distance is reduced to one-fifth the original distance, what is the magnitude of the new electric field?
A block starts from rest at the top of a 30 degree inclined frictionless plane and after travelling 1 meter encounters a spring of constant 3.0 kN/m, find how much would the block compress the spring
a 25.0 mH inductor is in an AC-circuit with a 150 V ac-source which operates at 60.0Hz. find the inductive reactance
The catapults on the USS George H.W. Bush can launch aircraft from rest to a speed of 150 mph over a distance of 270 feet. Find the acceleration of the aircraft
Because of the Earth's rotation, a plumb bob does not hang exactly along a line directed to the center of the Earth. How much does the plumb bob deviate from a radial line
A certain organ pipe, open at both ends, produces a fundamental frequency of 297Hz in air. If the pipe is full with helium at the same temperature, what fundamental frequency f He will it produce? Take the molar mass of air to be 28.8g/mol and the mo..
Assume that the universe is a spherical cavity with a radius of 10^26 m and temperature of 2.7 K. How many thermally excited photons are there in the universe
A 2.5 kg object is attached to a horizontal spring of force constant k = 4.1 kN/m. The spring is stretched 10 cm from equilibrium and released. Find the maximum acceleration
A ray of sunlight is passing from diamond into crown glass; the angle of incidence is 28.90 degrees. The indices of refraction for the blue and red components of the ray are: blue (n diamond=2.444, n crown glass=1.531), and red (n diamond=2.410, n..
Two metal conductors that are separated by a distance of 0.89 mm. When an electric spark jumps between them, What is the magnitude of the potential difference
during a liquid-to-solid phase change of a substance its change in entropy is -4.24 x 103 jk. if 1.42 x 106 j of heat
A long straight copper wire is statically charged with a chargedensity of −4.88 nC/m. At what radial distance from theaxis of the wire is the strength of the electric field equal to+7.76 N/C? Express your answer as a positivevalue.
A pair of narrow slits, separated by 1.8 mm, is illuminated by a monochromatic light source. obtain the wavelength of the monochromatic light
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