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Three resistors are connected in series across a battery. The value of each resistance and its maximum power rating are as follows: 4.3? and 27.7 W, 24.6 and 8.52 W, and 14.2? and 14.3 W. (a) What is the greatest voltage that the battery can have without one of the resistors burning up? (b) How much power does the battery deliver to the circuit in (a)?
Passengers on The Tower of Doom, a free-fall ride at Six Flags America, sit in cars that are raised to the top of a tower. How high is the tower
A metallic sphere has a charge of +3.7 nC. A negatively charged rod has a charge of -6.0 nC. When the rod touches the sphere, 7.2 109 electrons are transferred. What are the charges of the sphere and the rod now?
On a banked race track, the smallest circular path on which cars can move has a radius of 120 m, while the largest has a radius 155 m, Find the smallest speed at which cars can move on this track without relying on friction
A thin film with index of refraction n = 1.29 is placed in one arm of a Michelson interferometer, perpendicular to the optical path. If this causes a shift of 8.0 bright fringes of the pattern produced by light of wavelength 693nm, what is the film t..
a curve in a road has a banking angle calculated and posted for 80km/h The road is covered with ice so you drive slower than this limit What may happen to your car
A vertical wall (6.1m x 3.5m) in a house faces due east. A uniform electric field has a magnitude of 120 N/C. This field is parallel to the ground an points 33 degrees north of east. What is the electric flux through the wall
An extension cord is used with an electrc weed trimmer thathas a resistance of 15 ohms. Determine the resistance of the extension cord
a circus performer stretches a tightrope between two towers. he strikes one end of the rope and sends a wave along it
An RC circuit with C = 44.8 µF and R = 5.8 has a 23 V source in it. With the capacitor initially uncharged, an open switch in the circuit is closed. What is the current in the resistor at that time
Four identical charges (+2.2 ?C each) are brought from infinity and fixed to a straight line. Determine the electric potential energy of this group
A small rubber wheel is used to drive a large pottery wheel, and they are mounted so that their circular edges touch. The small wheel has a radius of 2.9cm and accelerates at the rate of 7.9rad/s^2 , and it is in contact with the pottery wheel (radiu..
a uniform electric field of magnitude 445 nc pointing in the positive x-direction acts on an electron which is
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