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A capacitor is charged to a potential of 12.0 V and is then connected to a voltmeter having an internal resistance of 3.50 M omega . After a time of 4.20s the voltmeter reads 2.8V . What is the capa
In a cloud chamber experiment, a proton enters a uniform 0.260T magnetic field directed perpendicular to its motion. You measure the proton's path on a photograph and find that it follows a circular
The coil of a generator has a radius of 0.17 m. When this coil is unwound, the wire from which it is made has a length of 9.00 m. The magnetic field of the generator is 0.20 T, and the coil rotates
What is the minimum number of turns (area per turn = 0.018 m2) that the coil must have to produce an rms voltage of 150 V?
Two points charges of +20.0 uC and -8.00 uC are separated by the distance of 20.0 cm. what is the magnitude of electric field due to these charges at a point midway between them ?
The speed of sound in an alcohol at a temperature of 20 C is 1260 m/s. the density of the alcohol at that temperature is 650 kg/m^3. at a temperature of 20 C, find the bulk modulus of the alcohol.
An ion having charge +6e is traveling horizontally to the left at 8.60km/s when it enters a magnetic field that is perpendicular to its velocity and deflects it downward with an initial magnetic for
What current must circulate around an 8.0--diameter loop, about the size of a human heart, to produce this field? What is the magnitude of the heart's magnetic dipole moment?
What are the three lowest frequencies for standing waves on a wire that is 9.0 m long, has a mass of 128 g, and is stretched under a tension of 250 N? (a) lowest (b) second lowest (c) third lowest
Steam at 75kPa and 13 percent quality is contained in a spring-loaded piston cylinder device, with an initial volume of 2 m^3. Steam is now heated until its volume is 5 m^3 ad its pressure is 300 kP
A pile driver drives a post into the ground. The mass of the pile driver is 3,500 kg and it is dropped through a height of 8.0 m on each stroke. If the resisting force of the ground is 4.5 ×
When an electron circles in a uniform circular motion, what would happen if we increased the magnitude of the magnetic field? A) The radius would not change. B) The radius would increase. C) The ra
A Michelson interferometer is set up to produce circular fringes using a Krypton source of wavelength 605.8 nm. Find the angular radius of the eighth bright fringe when the central path difference 2
By measuring the go-and-return time for a laser pulse to travel from an Earth-bound observatory to a reflector on the Moon, it is possible to measure the separation between these bodies. (a) What i
a) Find the magnitude of the final velocity of the 0.151 glider b) Find the magnitude of the final velocity of the 0.303 glider
In order to drink from your glass, you need to lift it to your mouth. If your glass in now 0.18kg and accelerates to your mouth at a rate of 0.09m/s^2. What is the weight of the glass?
a) Analyse a technological device that applies the principles of linear or circular motion. b) Assess the impact on society and the environment of technological devices that use linear or circular m
Two solenoids are nested coaxially such that their magnetic fields point in opposite directions. Treat the solenoids as ideal.
An electron passes through a point 3.91 cm from a long straight wire as it moves at 34.5% of the speed of light perpendicularly toward the wire. The wire carries a current of 12.9 A. Find the magnit
An RL circuit with L = 6.00 H and an RC circuit with C = 4.00 µF have the same time constant. (a) If the two circuits have the same resistance, R, what is the value of R? (b) What is this com
The vertical component of Earth's magnetic field in this region is 40.0 µT directed downward. Calculate the induced emf between the ends of the wire and determine which end is positive.
Find the strength of the magnetic field that causes a torque of 1.93 × 10-5 N·m to act on the loop when a current of 2.35 mA flows. T=???
Calculate the superconducting energy gap predicted by the BCS theory for a superconductor at T = 0K whose critical temperature Tc = 5.08 K. a) Calculate the frequency of a photon whose energy is ju
An electron enters a region of space containing a uniform 0.0000163-T magnetic field. Its speed is 109 m/s and it enters perpendicularly to the field. As you know, the electron undergoes circular mo
a) Calculate the work done by Fx when the object moves in the x-direction from x1 to x2. b) If x2 > x1, is the work done by Fx positive or negative?