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A series RC circuit has a time constant of 0.960 s. The battery has an emf of 48.0 V, and the maximum current in the circuit is 0.500 mA. What are?
(a) The value of the capacitance and
(b) The charge stored in the capacitor 1.92 s after the switch is closed?
In discharging a capacitor what percentage of the initial potential remains after one time constant has passed? After two times constants? Three times constants
A boxer stops a punch with his head. To approximate the force of the blow, treat the opponent's glove, hand, and forearm as aparticle of mass 1.68 kg moving with aninitial velocity of 21.5 m/s.
Four copper wires of equal length are connected in series. The cross sectional areas are 1 cm2, 2 cm2, 3 cm2, and 5 cm2, What is the voltage across the 2 cm2 wire in units of volt
A 300 g bird flying along at 5.5 m/s sees a 10g insect heading straight toward it with a speed of 25 m/s. What is the bird's speed immediately after swallowing
A car traveling 53.9 km/h is 23.7 m from a barrier when the driver slams on the brakes. The car hits the barrier 2.57 s later. How fast is the car traveling at impact
A woman accelerates her motorized scooter, with the engine on, down a 13-m-long ramp that starts at a height of 2.2 m. how many joules of energy did friction absorb
A flywheel of mass 182 kg has an effective radius of 0.61 m (assume the mass is concentrated along a circumference located at the effective radius of the flywheel). What is the applied torque on the flywheel
a child does 350 J of work while pulling a box from the ground up to his tree house with a rope the tree house is 8.4 m above the ground
You have a 300nF capacitor and wish to combine it with one other to make a combined capacitance of 2.50uF. How large a capacitor do you need
A person travels by car from one city to another. She drivesfor 21.1 minat 66.4km/h, 14.3min at 86.1km/h, 51.4at 46.8km/h, Determine the distance between the cities along this route
In a mass spectrometer the charged particles have to reach a common specific speed. To do so, they are accelerated with an electric field, determine the direction of the magnetic force
Light is emitted by a sodium sample that is moving toward Earth with speed v. The wavelength of the light is 589 nm in the rest frame of sample. The wavelength measured in the frame of Earth is 537 nm. Find v.
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