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A battery with \Epslion 12.0 V delivers a termal voltage of 11.2 V to a 45.0 V to a 45.0 \Omega load resistor. Calculate the following:
a. The value of the battery's internal resisance.
b. The resulting electrical power dissipated within the battery.
Two equally charged particles, held 22.4 cm apart, are released from rest. The initial acceleration of the first particle is observed to be 4.0 m/s2 and that of the second particle is 6.0 m/s2.
What is the smallest radius of an unbanked (flat) track around which a bicyclist can travel if her speed is 25 km/h
A bullet is fired into a block of wood sitting on a block if ice. The bullet has an initail velocity of 500m/s and a mass of 0.005 kg. The wooden block has a mass of 2kg and is initially at rest.
A solid sphere of radius 40.0 cm has a total positive charge of 30.0 µC uniformly distributed throughout its volume. Calculate the magnitude of the electric field
assuming each galaxy contains the mass of 200 billion suns and there are 200 billion such galaxies, what is the schwarzschild radius of the universe
A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 12.0 cm, determine find the electric field just inside the paint layer
A 36.0 kg uniform beam is attached to a wall with the hinge while its far end is supported by a cable such that the beam is horizontal.
A 80.0cm3 box contains helium at a pressure of 2.30atm and a temperature of 90.0?C. What is the final pressure in each box
In a purely iductive AC circuit L=25.0mH and the rms voltage is 150V. Calculate the inductive reactance, max and rms current in the circuit
A driving force of the form F(t)=(0.237 N) sin(2pi*f*t) acts on a weakly damped spring oscillator with mass 5.72 kg, Find the amplitude of the oscillator's steady-state motion when the driving force has this frequency
What is an average speed
A convex spherical mirror with a radius of curvature of 11.0 cm produces a virtual image one third the size of the real object. Where is the object
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