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A storm suddenly comes over the horizon as a Professor is enjoying a round of golf. He observes lightning strike a tree, and estimates that the charge is flowing at a rate of 16000 C/s. Using his JF stopwatch, he determines the lightning bolt lasts for 90 ?s.
A.) Determine the amount of charge that flows through the lightning bolt. (include units with answer)
B.) Determine how many electrons flow through the lightning bolt.
A shot-putter puts a shot (weight = 71.1 Newton) that leaves his hand at a distance of 1.52 meter above the ground. Determine the work done by the gravitational force when the shot has risen to a height of 2.13 meter above the ground
A plastic straw 20.0 cm long and 3.00 mm in diameter is filled with honey. Suppose that when you blow on one end of the straw, the pressure difference between the two ends of the straw is 0.05 atm. What mass of honey flows out of the straw
A 200m wide river flows due east at a uniform speed of 2.0m/s.A boat with a speed of 8.0m/s relative to the water leaves thesouth bank pointed in a direction 30 degrees west of north. How long does it take the boat to cross the river
A uniform 1.7-kg rod that is 0.97 m long is suspended at rest from the ceiling by two springs, one at each end. Both springs hang straight down from the ceiling. The springs have identical lengths when they are unstretched. Their spring constants are..
A person is standing on a level floor. His head,upper torso, arms and hands together weigh 438N and have a centerof gravity that is 1.17m above the floor. obtain the location of the center of gravity for entire body
A person undergoing radiation treatment for a cancerous growth receives an absorbed dose of 1.8 Gy. All the radiation is absorbed by the gowth. Determine the rise in temperature
Three athletes are tugging on a ring. Martha pulls with a force of 150 N in the northerly direction. Eveylyn pulls with a force of 100 N in the easterly direction. Sara pulls with a force of 200 N in the southwesterly direction (225 degrees clockw..
A 23 bullet traveling 240 penetrates a 4 block of wood and emerges going 170. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges.
A gas expands from I to F. The energy added to the gas by heat is 423 J when the gas goes from I to F along the diagonal path.
The fiberglass mantle assembly line at Ace Production is capable of producing products an hour. Today, the firm operated the assembly line for a total of hours.
On a winter day heat leaks out of a house at the rate of 2.5e4 kcal/h. At what rate does this process produce entropy
A 5 m length of wire carrying a current of 5 A lies on a horizontal table with a rectangular top of dimensions 0.300 m × 0.400 m. What magnetic force acts on this segment of wire
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