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When two unknown resistors are connected in series with a battery, the battery delivers 215 W and carries a total current of 5.00 A. For the same total current, 42.0 W is delivered when the resistors are connected in parallel. Decide the values of the two resistors.
A water pipe having a 2.60 cm inside diameter carries water into the basement of a house at a speed of 0.827 m/s, find water pressure (in kPa) at the second floor
A golfer hits a shot to a green that is elevated 3.30 m above the point where the ball is struck. find the speed of the ball just before it lands
A dead battery is charged by connecting it to the live battery of another car with jumper cables. Determine the current in the dead battery
When an air capacitor with a capacitance of 350 nF (1 nF = 10-9F) is connected to a power supply, the energy stored in the capacitor is 2.00×10-5J, What is the dielectric constant of the slab
A car traveling 53.9 km/h is 23.7 m from a barrier when the driver slams on the brakes. The car hits the barrier 2.57 s later. How fast is the car traveling at impact
a particle at time t 0 is at rest at a distance x0 from the origin and is subjected to a force that is inversely
two converging lenses having focal lengths of 5.0 cm and 10.0 cm are located 21.0 cm apart. an object is placed 15.0 cm
The energy in a lightning bolt is enormous. Consider, forexample a lightning bolt in which 29C of charge moves through apotential difference of 1.4*108 V. With the amountof energy in this bolt, how many kilograms of water at100o C could be boiled int..
Two metal balls are hung from strings. The first ball, 0.14 kg, is pulled to the side and released so that it strikes the second ball with a speed of 1 m/s. What is the mass of the second ball
a 1120 kg car experiences an impulse of 30000.0 n middot s during a collision with a wall. if the collision takes 0.43
The world's fastest humans can reach speeds of about 11 m/s. In order to increase his gravitational potential energy by an amount equal to his kinetic energy at full speed, how high would such a sprinter need to climb?
The outfielder throws a baseball with an initial speed of 10 m/s. An infielder catches the ball at the level 1 m lower speed. determine the speed of the ball and its kinetic energy
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