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Three light bulbs, A, B, and C, have electrical ratings as follows:
Bulb A: 96.0 W, 1.70 ABulb B: 80.0 V, 205 WBulb C: 120 V, 0.400 A
These three bulbs are connected in a circuit across a 150-V voltage power source, as shown in the figure. Assume that the filament resistances of the light bulbs are constant and independent of operating conditions. What is the equivalent resistance of this combination of bulbs between the terminals of the power source?
A bicycle tire pump has a piston with area 0.44 in. If a person exerts a force of 30lbs on the piston while inflating a tire, what pressure does this produce on the air in the pump.
Radio station KBOB broadcasts at a frequency of 85.7 MHz on your dial using a radio waves that travel at 3.00X10^8 m/s. What's the shortest distance between the towers
A 200-turn circular loop of radius 55 cm is vertical, with its axis on a line running east to west. What is the magnitude of the torque on the loop
A rocket is fired straight upp from the ground with a 2.25 m/s acceleration. what is the speed of the rocked when the engines stop
A wedge of mass M and angle a slides freely on a horizontal plane. A particle of mass m moves freely on the wedge. Determine the motion of the particle as well as that of the wedge.
Two equally charged insulating balls each weigh 0.22 g and hang from a common point with identical threads 25 cm long. The balls repel each other so that the separation among their centers is 6.0 cm. What is the magnitude of the charge on each ball?
To maximize the moment of inertia of a flywheel while minimizing its weight, what shape and distribution of mass should it have
A bullet is fired through a board that is 15.0 cm thick. The bullet moves along a direction perpendicular to the board. find the bullet's acceleration as it passes through the board
A proton moving at 3.50 106 m/s through a magnetic field of magnitude 1.66 T experiences a magnetic force of magnitude 8.40 10-13 N
A bix of mass 90 kg is sitting on the floor. The tension in the rope is 56.0N, Calculate the accleration on the box
An emf is induced in a conducting loop of wire1.42 {\rm m} long as its shape is changed from square to circular. Find the average magnitude of the induced emf if the change inshape occurs in 4.12 {\rm s} and the local 0.121-{\rm T} magnetic field ..
A coil has 2.25-ohm resistance and 118-mH inductance. what is the potential difference across the coil at this moment
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