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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: 6.3? and 17.8 W, 28.0? and 12.7 W, and 15.9? and 8.22 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)?
A uniformly charged insulating rod of length 19.0 cm is bent into the shape of a semicircle. The rod has a total charge of -7.50 µC. Find the magnitude and direction of the electric field at O, the center of the semicircle. EO = N/C.
Evaluate the magnitude of the acceleration of each mass. What percentage of error in would be made if the moment of inertia of the pulley were ignored? Ignore friction in the pulley bearings.
What is the magnitude of apparent weight of a 83-kg astronaut 3200km from the center of the Earth's Moon in a space vehicle accelerating toward the Moon at 3.8 m/s^2.
Classify two organizations with similar problems but from different countries. Analyze political, social, ethical and legal differences facing both organizations and determine the impact these differences have on management decision making.
It then increases it's speed at the rate of 1.55 m/s2. Find out the magnitude of acceleration under these new conditions. Answer in units m/s2.
One skater throws a .3 kg ball at 5 m/s to his friend, who catches it and throws it back at 5 m/s. When the first skater has caught the returned ball, Illustrate what is the velocity of each of the two skaters?
What is the magnitude of the average force of the bat on the ball throughout the ball-bat contact.
The effects of the spin of the earth
An electric field of 490000 N/C points due west at the certain spot. What is the magnitude of the force that acts on a charge of -8.3 C at this spot.
Dizziness. Our balance is maintained, at least in part, by the endolymph fluid in the inner ear. Spinning displaces this fluid, causing dizziness, What is the radical acceleration (in m/s^2) of the endolymph fluid
A glucose-winged gull, ascending straight upward at 5.20 m/s drops a shell when it is 12.5 m above ground.
A steady torque of 23-N•m is applied to a grindstone whose moment of inertia is 0.130 kg•m2. Using energy principles, and neglecting friction, determine the angular speed after the grindstone has made 13.0 revolutions.
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