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Solve the following problems:
Problem I: What current is drawn from the household circuit by a 1000 W hairdryer?
Problem II: What is the resistance of the hairdryer? (Analytical answer is necessary!)
Show all work, use additional paper if necessary for above problems.
The dipole moment of a water molecule in liquid water is 6.2×10−30 C·m, and the effective diameter of a water molecule is 2.8×10−10 m. In an earlier homework problem the effective dipole charge separation for water was calculated as 1.9×10−11 m.
An electron has an initial velocity of 5.00 106 m/s in a uniform 9.00 105 N/C strength electric field. How long does it take the electron to come to rest
A block of mass m=5kg is pulled up a frictionless ramp (theta=30degrees) at constant speed v=2m/s by an unknown tension force T. At what rate is the tension force doing work
A wooden block of mass 3kg is sliding down a 30 degree slope with constant velocity. What is the coefficient of kinetic friction between the block and the surface
Using energy considerations, compute the average force the beam exerts on the pile driver while the pile driver is brought to rest.
A boy 10.5 m above the ground in a tree throws a ball for his dog, who is standing right below the tree and starts running the instant the ball is thrown. How far from the tree will the dog catch the ball
Two ice skaters, with masses of 30.0kg and 75.0kg , are at the center of a 30.0m -diameter circular rink. how long does the lighter skater take to reach the edge
The force of attraction between a -40 micro C and + 108 microC charge is 4 N. What is the separation between these two charges
A basketball player makes a jump shot. The 0.700 kg ball is released at a height of2.10 m above the floor with a speed of7.10 m/s. The ball goes through thenet 3.10 m above the floor at a speed of 4.30 m/s.
Metal sphere 1 has a positive charge of 8.00nC . Metal sphere 2, which is twice the diameter of sphere 1, What are the final charges on each sphere
A charge of 18.0?C is held fixed at the origin. If a -6.50?C charge with a mass of 3.00g is released from rest at the position (0.925 m, 1.17 m), what is its speed when it is halfway to the origin
A capacitor with its plates separated by paper stores 4.6 nc of charge when it is connected to a particular battery. How much charge does the capacitor store
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