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Put a 10 V battery with a 10 ? internal resistance in series with a switch: hook this up to a 100 ? resistor in parallel with a 2 H inductor. Assume that the inductor itself is made of superconducting wire so has no resistance of its own. Start with the switch closed for a long time so steady currents exist in the circuit.
Find the battery current, the current in the 100 ? resistor, and the current in the inductor.
Find the initial voltage across the inductor when the switch is opened.
What's the current in the inductor as a function of time t from when you open the switch?
X-rays having an energy of 300 keV undergo Compton scattering from a target. The scattered rays are detected at 37.0° relative to the incident rays. find the energy of the recoiling electron
From a height of 35.5m , a 1.50kg bird dives (from rest) into a small fish tank containing 53.5kg of water. What is the maximum rise in temperature of the water
In a women's 100-m race, accelerating uniformly, Laura takes 1.87 s and Healan 3.12 s to attain their maximum speeds, which they each maintain for the rest of the race.
A sound wave from a siren has an intensity of 88.8 W/m2 at a certain point, What is the intensity level of the sound wave due to the ambulance
Two sinusoidal waves of the same period, with amplitudes of 5.5 and 7.5 mm, travel in the same direction along a stretched string; What is the phase constant of the other wave
An abstract sculpture is constructed by suspending a sphere of polished rock along the vertical with four cables connected to a square wooden frame 1.1 m on a side. If the stone has mass m = 7.5 kg, and the bottom two cables are under a tension of..
A box is sliding up an incline that makes an angle of 27.7 ° regarding the horizontal. The coefficient of kinetic friction between the box and the surface of the incline is 0.113. The initial speed of the box at the bottom of the incline is 2.27 m/s...
At a distance r1 from a point charge, magnitude of the electric field created by the charge is 296 N/C. At a distance r2 from the charge, the field has a magnitude of 168 N/C. Find the ratior2/r1.
A 21 g bullet travelling at 255 m/s is fired into a 0.452 kg wooden block anchored to a 100 N/m spring. How far is spring compressed to the nearest thousandth of a meter.
Three capacitors are arranged. C1 has a capacitance of 3 pF, C2 has a capacitance of 6 pF, and C3 has a capacitance of 9 pF. Find out the voltage drop across the entire arrangement if the voltage drop across C2 is 249 V.
Falls resulting in hip fractures are a major cause of injury and even death to the elderly. Typically, hip's speed at impact is about 2. If this can be reduced to 1.30 or less, hip will usually not fracture. One way to do this is by wearing elasti..
77 N to push a box with an acceleration of 0.55 m/s2. When she increases the pushing force to 85 N, the box's acceleration changes to 0.72 m/s2. What is the mass of the box
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