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A 50 W light bulb shines through two polarizers. After having passed through the first polarizer, the electric field incident on the second polarizer is 5.0 V/m. The second polarizer sits at a 25° angle from the first polarizer. What is the electric field immediately after having passed through the second polarizer?
A hall sensor made from silicon is 0.40 nm thick and has a charge carrier density of 2.0 x 10 ^19 m^-3. What is the value of the magnetic field
A silver wire has resistivity ? = 1.88 × 10-8 ?·m and a cross-sectional area of 5.80 mm2. What is the displacement current in the wire at that time
A trap door, of length and width 2.75 m, is held open at an angle of 65.0° with respect to the floor. what is the torque exerted on the trap door by the rope
You throw a 21.6 N rock vertically into the air from ground level. You observe that when it is a height 14.4m above the ground, What is its speed just as it left the ground
Assume that the volume of the empty spaces between the candes is negligible. If the height of the candes in the container increases at the rate of 0.270 cm/s, at what rate (kilograms per minute) does the mass of the candies in the container increa..
An Olympic skier whose mass is 50 kg is moving at 25 m/s down a 20degree slope encounters a region of wet snow of coefficient of frictio Uk=0.55 which reduces her speed. Find the acceleration of the skier
If linear momentum is conserved when there is no external force applied, how is angular momentum conserved? 2. The change in angular momentum with the change in time is equal to what?
When a 47.0-V emf device is placed across two resistors in series, a current of 4.0 A is flowing in each of the resistors. obtain the magnitude of the larger of the two resistances
a speeder passes a parked police car at a constant speed of 34.9 ms. at that instant the police car starts from rest
The sun is 1.5 1011 m from the earth. What is the total power radiated by the sun and Over what surface area is solar radiation spread at this distance
A photon, a packet of electromagnetic radiation, carries both energy and momentum. Consider a photon with a wavelength of 457 nm in vacuum. What is the momentum of the photon
questiona rectangular loop has 85 turns with an area of 0.225 m2 and lies in a uniform magnetic field of 0.28 t.
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