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In the days of horse-drawn wagons, iron tires used to be placed on wooden wagon wheels by heating the iron rims and slipping them over the wheels before they cooled. If an iron tire is made to fit tightly around a 1.2- m-diameter wheel at 15 oC, what diameter will the tire have when it is heated to 680 oC? ( 0.00)
A 100 meter length of steel changes temperature by 30 C during the course of a day. If the coeffcient of thermal expansion of steel is 12 parts per million per C, what is the change in length of the steel
find out the change in electric potential energy. For lengths of 1.000 m, 0.750 m, and 0.500 m, total time.
compute the force of the Earth's gravity on an electron and evaluate it with the force exerted on the electron by an electric field of magnitude 12500-V/m (a relatively small field). The mass and charge of an electron are given on the inside back ..
(a) Determine the distance of the final image relative to the converging lens. (b) What is the height of the final image (including the proper algebraic sign)?
determine the largest angle MAX that the crutch can have just before it begins to slip on the floor.
imagine someone drops an apple from a vertical distance.
A capacitor C is charged to an initial potential of 60.0 V, with an initial charge of Q0. It is in a circuit with a switch, Calculate the energy in the circuit after a time of 11 periods
What is the greatest weight W that can be supported this way without pulling out the nail? What is the magnitude of the force that the hinge exerts on the pole.
A 1g plastic pellet is accelerated by an electirc field of 1000V/m over a gap of 12 cm, What is the velocity of the pellet after crossing the gap
Two protons are moving directly toward one another. When they are very far apart, their initial speeds are 2.10 x 105 m/s. What is the distance of closest approach?
Find out the direction of the train motion
A 40g ball of clay traveling east at 2.0m/s collides and sticks together with a 60g ball of clay traveling north at 1.0m/s
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