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A charge of +47 uC is located at (0, 2.2 m). A charge of -63 uC islocated at (0, 1.6m). For these questions assume that the electricpotential energies are zero at infinity.A. What is the force (mag and direction) on the -63 uC charge?B. What is the electric potential at the orgin?C. What is the electric field (mag and direction) at the origin?D. How much work was done by the electric field to bring these towcharges to their current locations?E. If the charges are moved farther apart, does their electricpotential energy increase, decrease or remain the same?
A block of mass 3.0 kg moves along a frictionless track which has a dip 0.7 m below the original level of the track and then a plateau 1.0 m above the original level of the track. What is the velocity at the hight point
A 1.0-cm-tall candle flame is 55 cm from a lens with a focal length of 22 cm. What is the image distance? What is the height of the flame's image
What least amount heat is needed to bring 20-g of water at 20C to the boiling point and completely boil it away.
You hold a circular loop of wire at the north magnetic pole of the Earth. Consider the magnetic flux through this loop due to the Earth's magnetic field.
A 16.5 kg gold bar at 27 °C is placed in a large, insulated 0.800 kg glass container at 15°C with 2.00 kg of water at 25.0°C. Compute the final equilibrium temperature.
A box weighing 77.0 N rests on a table. A rope tied to the box runs vertically upward over a pulley and a weight is hung from the other end. Determine the force that the table exert on the box if the weight hanging on the other side of the pulley ..
A machinist turns the power on to a grinding wheel, at rest, at time t=0 s. What is the angular velocity in the time interval from t=0 to t=25s
A photon Compton scatters off of a stationary electron at an angle of 60 °. Determine the initial wavelength of the photon
Emily has a field with uniformly cut grass of height 2 cm which grows at a constant rate. How long would it sustain each animal alone
Hydraulic engineers often use, as a unit of volume of water, the "acre-foot", defined as volume of water that will cover 1 acre of land to a depth of 1 ft. A severe thunderstorm dumps 2.0 in. of rain in 30 min on a town of area 35 km2. What volume..
A loud speaker is playing rock music. Consider the sound from it as a spherical wave. what is the sound intensity level
Two spectators at a soccer game in Montjuic Stadium see, and a moment later hear, the ball being kicked on the playing field. How far is each spectator from the player
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