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A 2.30×103 ? resistor and a capacitor are connected in series and then a 12.00 V potential difference is suddenly applied across them. The potential difference across the capacitor rises to 9.600 V in 2.30 ?s.
A) Calculate the time constant of the circuit.
B) Find the capacitance of the capacitor.
If the density and atomic mass of copper are respectively 8.80 103 kg/m3 and 63.5 kg/kmol, Determine the drift speed of the electrons in a 10 gauge copper wire (2.588 mm in diameter) carrying a 19.5 A current
A 1 kg ball is attached to a 2 m long piece of very light string and suspended in such a way that it can freely swing and it passes just above the ground.
Water is pumped into a storage tank from a well delivering 19.0 gallons of water in 26.0 seconds through a pipe of 1.00 in.2 cross-sectional area. What is the average velocity of the water in the pipe as the water is pumped from the well?
What is the Professors initial velocity. He is pushed a distance 3.00 m along the incline by a group of students who together exert a constant horizontal force of 595 N. The professor's speed at the bottom of ramp is 1.70 m/s.
What is the intensity level in decibels for a sound with an intensity of 2.35×10-4 W/m2, What is the intensity for a sound with an intensity level of 79.9 dB
A river has a steady speed of 0.42m/s. A student swims upstream a distance of 1 km and swims back to the starting point. If the student can swim at a speed of 1.25 m/s in still water, how long does the trip take.
An east-west electric power line carries a 500-A{\rm A} current toward the east. Determine the direction of this magnetic field at Earth's surface directly under the wire
You are asked to design a parallel-plate capacitor having a capacitance of 1 F and a plate separation of 1.00 mm. compute the required surface area of each plate. Is this a realistic size for a capacitor.
A charge of -5.8 micro-Coulombs is placed at x = 0, y = 0. A charge of +17.1 micro-Coulombs is placed at x = 0, y = +36 cm. Another charge of +34.8 micro-Coulombs is placed at x = +33 cm, y = 0 cm. What is the magnitude of the total electric force..
In a television picture tube, electrons strike the screen after being accelerated from rest through a potential difference of 20000 V. The speeds of the electrons are quite large.
An ambulance moving at 42 m/s sounds its siren whose frequency is 450 Hz. a car is moving in the same direction as the ambulance at 25 m/s. what frequency does a person in the car hear as the car approaches the ambulance? After the ambulance passe..
An iron bolt of mass 79.0 g hangs from a string 32.4 cm long. The top end of the string is fixed, Find the tension in the string and Find the magnetic force on the bolt
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