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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
A bar magnet is oriented with its magnetic dipole moment at 57.3° to the direction of a 0.0357-T magnetic field, Find the magnitude of the magnet\'s magnetic dipole moment
A proton moves through a magnetic field at 39.1% of the speed of light. obtain the magnitude of the magnetic force acting on the proton
Four wires meet at a junction. In two of the wires currents I1 = 1.55 A and I2 = 2.15 A enter the junction. Find the current in the fourth wire and indicate its direction
A 658-kg boulder is dropped into a mine shaft that is 2.1 x 103 m deep. During the boulder's fall, the system consisting of the Earth, Determine the binding energy (in Joules) of the Earth-boulder sy
A 10.0 kg ball rests suspended by the 5.0 m long weightless string. find The maximum deflection angle for the large ball
A wire of length, L, and mass density, ?, is positioned parallel to and directly over another much longer wire. what is the seperation between the two wires
Use Ampere's Law to find the magnetic field due to an infinitely long wire of radius R carrying a current I. Find the magnetic field both inside and outside the wire
A charged particle moving with speed, v, enters a region containing a uniform magnetic field, Starting from Newton's second law, derive the formula for the radius of the particle's orbit in terms of
The energy released by each fission within the core of a nuclear reactor is 2.00 x 102 MeV. Determine the power (in watts) that the reactor generates
A copper pipe with an outer radius of 0.011 m runs from an outdoor wall faucet into the interior of a house. Find the inner radius of the pipe
A student sits on a rotating stool holding two 4.0-kg objects. When his arms are extended horizontally, Find the new angular speed of the student
A centrifuge in a medical laboratory is switched on and rotates through 3900 revolutions. determine the final angular speed of the centrifuge
A particle of mass 0.450 kg is attached to the 100-cm mark of a meter stick of mass 0.175 kg. Calculate the angular momentum of the system when the stick is pivoted about an axis perpendicular to the
A heat engine operates in a Carnot cycle between 84.0°C and 345°C. It absorbs 20,800 J of energy per cycle from the hot reservoir. How much energy does it expel in each cycle by heat
An engraver uses a magnifying glass (f = 8.80 cm) to examine some work, as in the drawing. What is the distance between the work and the magnifying glass
The nucleus of the hydrogen atom has a radius of about 1.1 x 10-15 m. find the percentage of the volume of the atom that is occupied by the nucleus
What is the distance between an object and its real image formed by a thin converging lens with focal length f, if the object distance is p? What is this minimum object-image distance
A dish antenna with a diameter of 22.8 m receives (at normal incidence) a radio signal from a distant source, find the intensity of the radiation received by the antenna
A 12.1-kg cylinder rolls without slipping on a rough surface. At an instant when its center of gravity has a speed of 10.6 m/s, find the rotational kinetic energy about its center of gravity
Compressed air in a car lift applies a force to a piston with radius 5.00 cm. What pressure produces the lift
Electrons in a photoelectric experiment emerge from an aluminum surface with a maximum kinetic energy of 2.1eV
You are given 65.000 cm of copper wire with diameter 7.0000 mm. compute At what rate is thermal energy generated in the loop
Our Sun has a radius of 7 x 10^8 meters. From the amount of thermal energy we receive on Earth, determine the average surface temperature of the Sun
A large incandescent light bulb used in a spotlight in the 1939 movie "The Wizard of Oz" had an operating temperature of 2500 degrees Kelvin. determine the thermal power from the filament in Joules/s