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A point charge q1 = +2.40 µC is held stationary at the origin. A second point charge
q2 = - 4.30 µC moves from the point x = 0.150 m, y = 0 to the point x = 0.250 m, y = 0.250 m.
How much work is done by the electric force on q2.
A small sphere with a mass of of 4.00 X 10-6 kg and carrying a charge of 5.00 X 10-8 C hangs
from a thread near a very large, charged insulating sheet, as shown below. The charge density on
the surface of the sheet is uniform and equal to 2.50 X 10-9 C/m2
. Find the angle of the thread.
A very long uniform line of charge has charge per unit length 4.80 µC/m and lies along the xaxis. A second long uniform line of charge has charge per unit length – 2.40 µC/m and is parallel
to the -axis at y = 0.400m. What is the net electric field (magnitude and direction) at the following
points on the y-axis: (a) y = 0.200 m and (b) y = 0.600 m?
A 6.20 μC point charge is at the center of a cube with sides of length 0.500 m. (a) What is the
electric flux through one of the six faces of the cube? (b) How would your answer to part (a)
change if the sides were 0.250 m long? Explain
A cook puts 9.00 g of water in a 2.00-L pressure cooker that is then warmed to 500oC . What is the pressure inside the container?
What is delta S, the change in entropy of ten moles of an ideal monatomic gas that is expanded slowly and isothermally at a temperature of 293K from a pressure of 2 atm to a pressure of 1 atm?
a) 57.6 J/K
b) 203.4 J/K
c) 21.7 J/K
Two systems have thermodynamic probabilities of 3.0 * 10^27 and 1.8 10*28 respectively calculate the entropies of the individual systems as well as their in composite systems and verify the boltzsmen relation
Your job is to lift 25.0 kg packaged baxes a vertical distance of 1.0 m from the ground onto the bed of a delivery truck. How many packaged boxes would you have to load onto the truck in one minute for
your average output power that goes into lifting the boxes to be 0.11 hp?
A 65 kg mountain climber climbs through a vertical rope at a constant acceleration from rest to a
1 of 1.25 m/s in 10.0 s and feels no appreciable air resistance. How much power must the
speed m/s in 10.0s and alr must
climber imparts on the vertical rope?
Two point charges are seperated by a distance of 100cm. With a magnitude of -10-6 for both charges. Find the electric force between them
