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A 11.45 Volt battery with internal resistance R1 = 0.1373 is said to be charged by a battery charger that is capable of delivering a current i= 9.7959 Amp. Find the minimum emf the battery charger must be able to supply in order to charger the battery.
For a single, isolated point charge carrying a charge of q = 46.7 pC, one equipotential surface consists of a sphere of radius 22.4 mm centered on the point charge as shown. What is the potential on this surface?
What relationship can you infer about the directions of the electric field lines and equipotential lines, What is the potential of the conductor
A red 2·kg ball traveling 8·m/s due north collides with a green 2·kg ball traveling 5·m/s due west, what direction is he green ball going after the collision
An interplanetary spaceship passes through the point in space where the gravitational forces from the moon and the earth on the ship exactly cancel. How far from the center of the earth is it
A pendulum is made with a 4.00 kg mass suspended at the end of a 75.0 cm thin rod. What is the velocity of the pendulum as it passes through the origin
A dock worker applies a constant horizontal force of 76.0 N to a block of ice on a smooth horizontal floor. The frictional force is negligible. What is the mass of the block of ice
A 20.2 kilogram boy descends a slide 3.1 meter high and reaches the bottom with a speed of 2.1 m/s. Find how much thermal energy due to friction was generated in this process
The magnetic field of a cylindrical magnet that has a pole-face diameter of 3.3 cm can be varied sinusoidally between 29.6 T, At a radial distance of 2.0 cm, what is the amplitude of the electric field induced by the variation
an enemy ship is on the east side of a mountain island as shown in the figure. the enemy ship has maneuvered to within
For a wavelength of 420nm, a diffraction grating produces a bright fringe at an angle of26°. What is the unknown wavelength
A 50 lbf object is dropped from a height of 53 ft. Neglecting air resistance. At what velocity will the object strike the ground
A certain black body radiates 1200 W at a temperature of 2000 K. how much power does this body radiate at 3000 K
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