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An immersion heater must increase the temperature of 1.50 kilogram of water from 10oC to 15oC in 10 minute while operating at 110 Volt. Calculate the required resistance of the heater?
A bullet of mass m=30 g or .03 kg, is fired into a wooden block of mass M=5.0 kg. The block is attached to a string of length 1.5 m. The bullet is embedded in the block, causing the block to then swing.
At Green Hills golf course, the ninth hole par 3 isfrom an elevated tee box. With a laser rangefinder, a golfermeasures the flag to be 143 m 18.5 degrees below thehorizontal.
An ideal gas is enclosed in a cylinder with a movable piston on topof it. The piston has a mass of 8000 g and an area of 5.00cm2 and is free to slide up and down, keeping the pressure of the gas constant.
according to anna on earth bob is on a spaceship moving at 0.8c towards earth and carl a little farther out is on a
Two boxes, A and B, are connected by a (mass-less) cord and are resting on a smooth (frictionless) table. Find the tension force in the cord connecting the two boxes
A 40 kg child sits in a swing suspended with 2.5 m long rope. Use energy conservation to determine the speed the child will have at the bottom of the arc when she is let go
A 2cm x 2cm square loop of wire in the xy plane with resistance .010 ohms has one edge parallel to a long straight wire. What is the current in the loop
Imagine a proton at rest a certain distance from a negatively charged plate. After being released it collides by the plate. Then imagine an electron at rest the same distance from a positively charged plate. Suppose that the amount of net charge of t..
To start an avalanche on a mountain slope, an artillery shell is fired with an initial velocity of 340 m/s at 47.0° above the horizontal, What are the x and y coordinates of the shell
Two identical freight cars roll without friction (one at 1 m/s, the other at 2 m/s) toward one another on a level track. They collide, couple, and roll away together with a combined momentum of.
A 2.65 kg object is moving in a plane, with its x and y coordinates given by x = 2t2 - 3 and y = 2t3 + 6, where x and y are in meters and t is in seconds. Find out the magnitude of the net force acting on this object at t = 2.00 s.
A satellite circles the earth in an orbit whose radius is 1.83 times the earth's radius. What is the period of the satellite
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