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A +50 µC charge is placed 34 cm from an identical +50 µC charge. How much work would be needed to move a +0.42 µC test charge from a point midway among them to a point 8.0 cm closer to either of the charges?
A certain automobile can decelerate at |a1| = 1.6 m/s2. Traveling at a constant v1 = 29 m/s, this car comes up behind a car traveling at a constant v2 = 4 m/s. What is the speed of the faster car relative to the slower car
The pulley of an Atwood Machine has a radius of 0.150 m and a moment of inertia of 0.687 kg m^2. Mass 1 is equal to 19.9 kg and Mass 2 is equal to 15.0 kg. What is the acceleration of Mass 2 and what is the angular acceleration of the pully?
A 2.0 kg block starts from rest on the positive x axis 3.0 m from the origin and thereafter has an acceleration given by a = 4.0 i -3.0 j in m/s2. At the end of 2.0 s its angular momentum about the origin is?
An inductor with an inductance of 2.90H and a resistor with a resistance of 6.00? are connected to the terminals of a battery with an emf of 4.00V, Find the initial potential difference across the inductor
A small metal bead, labelled A, has a charge of 29 nC. It is touched to metal bead B, initially neutral, so that the two beads share the 29 nC charge, but not of necessity evenly. When the two beads are then placed 5.0 {rm cm} apart, the force betwee..
A wire of Nichrome (a nickel-chromium-iron alloy commonly used in heating elements) is 1.5 meter long and1.9 mm2 in cross sectional area. Find what is the conductivity of Nichrome
When light with a wavelength of 228 nm is incident on a certain metal surface, Determine the wavelength of light that should be used to double the maximum kinetic energy of the electrons ejected from this surface
A man's leg can be thought of as a shaft of bone 1.2m long. If the strain is 1.3x 10^-4 when the leg supports his weight, by how much is his leg shortened
At a dock, a crane lifts a 2094 kg container 14 m, swings it out over the deck of a freighter, and lowers the container into the hold of the freighter, How much work is done by the crane on the container?
a child sits on the outer edge of a 18 m radius merry-go-round. if the parent applies a tangential acceleration of 2.5
An 8.70kg block slides by an initial speed of 1.66m/s up a ramp inclined at an angle of 27.4 degrees to the horizontal. The coefficient of kinetic friction among the block and the ramp is 0.3. Use energy conservation to discover the distance the bloc..
A cart for hauling ore out of a gold mine has a mass of 425 kg, including its load. Calculate the work done on the cart during the process by friction
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