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A copper wire has diameter 0.140mm and length 11.0cm . It's in a horizontal plane and carries a current of 2.50A . The density of copper is 8920 kg/m3.
A. Find the magnitude of the magnetic field needed to suspend the wire against gravity.
B. Find the direction of the magnetic field needed to suspend the wire against gravity. Assume the current points east.
An average temperature of the rest of the universe
Objects A and B are on a horizontal surface. Object A exerts a force on object B, and, in accordance with the laws of motion, generates a reaction force.
Assume that the only force acting on him throughout the collision is that as a result of the ground.
You lower a weight of metal in a beaker filled with water standing on a scale. When metal weight hangs above the water weighs 179.6 grams.
On a cold day, 16000 J of heat leaks out of a house. The inside temperature is 20.0° C, and the outside temperature is -18° C. What is the increase in the entropy of the universe that this heat loss produces?
How many electrons should be transferred from the plate. When you enter your answer, leave off the unit rm dB.
A parallel-plate air capacitor of area A= 10.0 cm2 and plate separation d= 3.20 mm is charged by a battery to a voltage 50.0 V, how much additional charge will flow from the battery onto the positive plate
Just by the impact, the clay has speed v0 = 9 m/s, and the disk is rotating clockwise with angular speed w0 = 0.4 rad/s. Just following the impact, what is an angular speed of the combined system of wheel plus clay.
How fast must the car be travelling just as it leaves the cliff in order to clear the river and land safely on the opposite side.
How numerous years would it take a thermally insulated one-million-kilogram chuck of granite to undergo a 1000k boost in temperature?
A 5.70 cm x 3.10 cm rectangle lies in the xy-plane, What is the electric flux through the rectangle if E = (50.0 i-hat + 60.0 k-hat) N/C
A homemade capacitor is assembled by placing two 9-in. pie pans 4cm apart and connecting them to the opposite terminals of a 6-V battery, Estimate the work done by the battery to charge the plates
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