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A series circuit with a 12kΩ resistor, a 12.0 V battery and a capacitor has a time constant of 55 μs.
a) Compute the capacitance of the circuit?
b) Compute the time it takes for the energy stored in the capacitor to be two thirds of its maximum value?
c) What is the value of j at this time if the wire has a radius of 5.0 mm?
if 470 J of heat are added to 65 moles of a monatomic gas at constant volume, how much does the temperature of the gas increase
The sound intensity 59 m from a wailing tornado siren is 0.11 W/m2. (a) What is the intensity at 1190 m (b) The weakest intensity likely to be heard over background noise is 1 µW/m2.
With an average mass of only 30.0 g, the ouse lemur of Madagascar is the smallest primate on the earth. What is the lemur's tangential speed at that point
A charged belt, 43 cm wide, travels at 26 m/s between a source of charge and a sphere. The belt carries charge into the sphere at a rate corresponding to 81 µA. Compute the surface charge density on the belt.
You can ignore air resistance. Explain how far from the point of firing does the other fragment strike if the terrain is level?
A 71.0kg football player is gliding across very smooth ice at 2.00m/s, What is the player's speed afterward if the ball is thrown at 18.0m/s relative to the ground
A 890-Hzsounds travels through pure hydrogen. The wavelength of the sound is measured to be 1.44 m, What is the speed of sound in hydrogen
The coil in a 60-Hz ac generator has 125 turns, each having an area of 3.0 × 10-2 m2 and is rotated in a uniform 0.12-T magnetic field
A lonely party balloon with a volume of 2.40 L and containing 0.100 mol of air is left behind to drift in the temporarily uninhabited, Calculate the entropy change of the air during the expansion
A positive charge of 0.800? C is located in a uniform field of 1.20×105 N/C. A negative charge of -0.400? C is brought near enough to the positive charge that the attractive force between the charges just equals the force on the positive charge du..
A ball is thrown and hits a wall with velocity Vo, and bounces off the wall with velocity Vf... Given contact time, what is the avg force acting on the ball
A block of mass 7.1 kg is pulled along a horizontal frictionless floor by a cord that exerts a force of 41.0 N at an angle 34.9° above the horizontal, What is the magnitude of the normal force exerted on the mass
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