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The work done by an external force to move a 6.50 uC charge from point a to point b is 0.0240 J. The charge started from rest and had 0.0110 J of kinetic energy when it reached point b.
(a) Find the change in the electrical potential energy of the charge when it was moved from point a to point b.
(b) Find the potential difference, Vba between points a and b.
A rifle with a barrel length of 59 cm fires a 8 g bullet with a horizontal speed of 350 m/s, What resistive force (assumed to be constant) does the wood exert on the bullet
You have been given a long lenght of wire. You measure the resistance of the wire, What is the resistance of one of those sections
Water flows straight down from an open faucet. The cross-sectional area of the faucet is 1.60 10-4 m2, find the cross-sectional area of the water stream at a point 0.09 m below the faucet
A 790-N cliff diver in Alcapulco drops from a cliff 20.60 m above the water's surface. If friction is disregarded, what is the cliff diver's speed just before striking the water.
A heat engine does 376.88 J of work per cycle while exhausting 648.92 J of heat to the cold reservior. what is the cold reservior temperature in degrees Celsius
A 6.4kg ball, hanging from the ceiling by a light wire 135cm long, is struck in an elastic collision by a 1.80 ball moving horizontally at 4.20 m/s just before the collision. Find the tension in the wire just after the collision.
A vertical cylinder 6 ft tall and 1 ft in diameter might be used to approximate a man for heat-transfer purposes, Calculate the heat lost from the cylinder
Illustrate what are the velocities of the two people after the snowball is exchanged? Disregard the friction between the skates and the ice.
a charged particle is injected at 211 m/s into a 0.0627- T uniform magnetic magnetic field perpendicularly to the field, What is the charge to mass ratio of this particle
Two point charges 2.0cm apart have an electric potential energy -400?J . The total charge is 25nC, What is the lesser and larger charge
A person has severe hearing loss that reduces the intensity in his inner ear by 31.5 dB. What amplification factor is needed for this person
The rectangular gate CD shown in the figure is 1.8 m wide and 2 long. Assuming the material of the gate to be homogeneous and neglecting friction at the hinge C, determine weight of the gate necessary to keep it shut until the water level rises to..
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