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1. Compute diameter of a 5 meter long copper wire when its resistance is 0.01 Ohm.
2. Determine the maximum voltage that can be applied to a 2 Ohm resistor rated at a power 1W?
A spring gun is made by compressing a spring in a tube and then latching the spring at the compressed position. How much work is done by the spring when the latch is released and the pellet leaves the tube
The loaded cab of an elevator has a mass of 3.6 x 10^3 kg and moves 193m up the shaft in 20s at constant speed. At what average rate does the force from the cable do work on the cab.
A disk of radius 0.2m and moment of inertia 1.5 kg*m^2 is mounted on a nearly frictionless axle. A string is wrapped tightly around the disk, and you pull on the string with a force of 25 N. After w while the disk has reached an angular speed ..
what is the index of refraction of the jelly? 2 glass plates are parallel and between is jelly 0.015mm thick. the glass has an index of refraction 1.53, the plates are each 8.00 cm long, 10 dark fringes are 6.33mm apart. wave length is 525nm .
A child operating a radio-controlled model car on a dock accidentally steers it off the edge. The car's displacement 0.86 s after leaving the dock has a magnitude of 9.0 m. What is the car's speed at the instant it drives off the edge of the dock?
Marathon swimmer DJ is swimming in the Atlantic Ocean. She is moving north with a velocity of 2 m/s relative to the water. What is DJ's absolute or true velocity
A car with mass of 1000.0 kg accelerates from 0 m/s to 40.0 m/s in 13.0 s. Ignore air resistance. What volume of gasoline is consumed? Assume that the burning of 1.0 L of gasoline releases 46 MJ of thermal energy
a stone is shot from the edge of a cliff 125 m above ground level with an initial speed of 65 ms at an angle of 37
A cat stuck up a tree and has 500 J gravitational potential energy. It then falls. Find the kinetic energy of the cat just before it is caught by the owner. Find the kinetic energy of the cat after it is caught by the owner.
A bungee jumping mime is attached to a bungee cord 25.0 m long. The mime is in freefall until he gets to the end of the bungee, Find the maximum speed attained by the mime
An 80 centimeter long wire is made by welding a 2.30 mm diameter, 20 centimeter long copper wire to a 2.30 mm diameter, 60 centimeter long iron wire. Determine the resistance of the composite wire in milliohm
A 10 Newton effort force is required to lift a 10kg box just off the ground. What is the effort required to lift the box off the ground using a 3m long lever.
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