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A capacitor of capacitance c=60 uf is connected in series with a resistance R=500 ohm and voltage g=10 v. (a) when does the capicator reach 20% of its maximum charge? (b) what is the voltage in the circuit at that moment? (Start from the loop equation and derive all required).
A light ray strikes the glass of an aquarium at an angle of 45o. Determine the angle at which the ray emerges in water
An object is placed 12 cm in front of a concave mirror whose focallength is 23 cm. The object is 3.6 cm tall. Determine (a) the location of the image,taking a real image as a positive value and a virtual image as anegative value.
A recent theory suggests that time may be quantized, and that the quantum, or elementary amount, of time is given by the equation t= h/(mpc^2), where h is blank constant, mp is the portion mass and c is the speed of light. comfirm that this equati..
As a bar magnet moves toward a 150-turn coil, the magnetic field (which is perpendicular to the plane of the coil) changes from 0.25 T to 0.53 T in 0.3 s. find the magnitude of the induced current in the coil
In the Bohr model of the hydrogen atom, an electron in the 6th excited state moves at a speed of 6.08 x104 m/s in a circular path having a radius of 1.90 x 10-9 m. What is the effective current associated with this orbiting electron
A bucket of water with a mass of 2kg is attached to a rope that is wound around a cylinder. The cylinder has a mass of 3 kg and is mounted horizontally on frictionless hearings. The bucket is released from rest.
A rope exerts a constant horizontal force of 250N to pull a 60 Kg crate across the floor.
n a cathode ray tube, electrons are accelerated from rest by a constant electric force of magnitude 6.6 ? 10-17 N during the first 1.9 cm of the tube's length, Find the speed of the electrons when they hit the screen
A banked circular highway curve is designed for traffic moving at 60 km/h. What is the minimum coefficient of friction between tires and road that will allows
The star nearest the earth (the sun) radiates the most energy at a wavelength of 470 nm. What is the temperatures of the sun's outer layer, the photosphere
A nuclear power plant generates 3000 MW of energy from nuclear reactions in reactor%u2019s core. What is the maximum thermal efficiency of the power plant
A swimming pool requiring a 2.0 hp motor to filter and circulate the water runs for 18 hours a day. What is the monthly electricity cost for running this pool pump
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