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A battery with an emf of 12.6 V and internal resistance of0.83Ω is connected across a load resistor R. If the current inthe circuit is 0.85 A, what is the value of R?What power is dissipated in the internal resistance of the battery? Answer in units of W.
A49.0 g sample of a conducting material is all that is available. The resistivity of the material is measured to be11 multiplied by 10-8 · m, What must be the diameter of the wire
Suppose that a 1.00 cm3 box in the shape of a cube is perfectly evacuated, except for a single particle of mass 1.21 10-3 g. Find the mass density inside the box
The Saturn's ring has a diameter of about 2.00x10^5km and the distance between the Earth and the Saturn is 1.40x10^9km. Based on your calculation on resolution power, will the ring be visible in telescope.
A 0.002 m^3 block of wood is fully submerged in water of density 1000kg/m^3 by a string with tension 10 N. Find the density of the wood
A box with a mass of 5 kg initially moving at 3 m/s comes to rest in a distance of 9 m. what is the magnitude of the net force acting on the box
The period of a satellite at an altitude of 200 km above the surfce of the earth is 20 hours. What is the period of a satellite that is placed at an altitude of 500 km
A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 8.10 m/s at an angle of 17.0° below the horizontal. How far horizontally from the base of the building does the ball strike the ground
A pitcher throws a ball to the catcher at a speed of 100 mi/h(45 m/s). If the velocity of the ball is horizontal when itleaves the pitcher's hand, how far (vertically) will it fallon the way to the catcher? The distance from the pitcher to catcheris ..
Sam heaves a shot with weight 16-lb straight upward, giving it a constant upward acceleration from rest of 45.5m/s2 for a height 63.0cm, What is the speed of the shot when he releases it
A full cylinder has an absolute pressure of 1.9 107 Pa when the temperature is 300 K. Find out the mass of oxygen in the cylinder.
a 50-N crate is pulled up a 5-m inclined plane by a worker at a constant velocity. what is the force applied by the worker
A horizontal beam of electrons initially moving at 4.0x10^7 m/s is deflected vertically by the vertical electric feild between oppositely charged parallel plates
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