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A 20 kg piece of steel pipe that is 20 cm in diameter, 80 cm long, and 1 cm thick is rolling toward you at a speed of 3.0 m/s. What is its angular velocity and its total kintetic energy (including rotational energy)?
ten megawatts of electricty is to be transmitted over a power line of resistance 4 ohms. At what current will the power be transmitted
Two long, parallel wires separated by 4.50 cm carry currents in opposite directions. The current in one wire is 1.20 A, and the current in the other is 3.45 A. Is the force attractive or repulsive
The altitude of a hang glider is increasing at a rate of 6.79 m/s. At the same time, Calculate the magnitude of the glider's velocity
A vertical tube 1.9cm in diameter and open at the top contains 4.0g of oil (density 0.82 g/cm^3) floating on 4.0g of water. Find the gauge pressure at the oil-water interface
Blocks A, B, and C are placed as in the diagram below and connected by ropes of negligible mass. What is the weight of block
During a workout, the football players at Rutgers State University ran up the stadium stairs at a steady pace in 58 s. estimate the average power output on the way up
A bat strikes a 182g ball with a force of 109-N at an angle of 57° above the horizontal. What is the ball's vertical acceleration (positive for upward, negative for downward).
an insulated beaker with neligiblr mass contains.280kg of liqid water at a temperature of 84.5degree celicous. what is the final temperature of the ice/ water mixture
A two-turn circular wire coil of radius 0.430 m lies in a plane perpendicular to a uniform magnetic field of magnitude 0.500 T. what is the average induced emf in the wire during this time
How far should you place the lens from the slide. Express the direction as an angle with respect to the +x axis.
A 60 kg person jumps from rest off a 5 m high tower straight down into the water. Determine the magnitude of the average forces that the water exerts on the diver
An ocean liner leaves New York City and travels 12.0° north of east for 111 km. How far east and how far north has it gone? In other words, what are magnitudes of the components of the ship's displacement vector in the directions.
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