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A particle of charge q = e moves in a circle of radius = 0.46m with speed v = 2.800×107 m/s.Treating the circular path as a current loop with constant currentequal to its average current, find the maximum torque exerted onthe loop by a uniform magnetic field of magnitude B = 0.90T.
The density of ice is 920 kg/m3, and that of sea wateris 1030 kg/m3. What fraction of the total volume of an iceberg is exposed
An ac generator with a frequency of 30.0 Hz and an rms voltage of 12.0 V is connected to a 45.5-µF capacitor, What is the maximum current in this circuit
The magnetic field in an electromagnetic wave has a peak value given by B = 5.5 µT. For this wave, determine the peak electric field strength
When two capacitors are connected in series the equivalent capacitor is 120uF. What are the individual values of each capacitor
a 2.0microf capacitor and a 4.0microf capacitor are connected in series across 1000 v. the charged capacitors are then
A pulse from a ruby laser (lambda = 694.3 nm) has an average power of 20 MW and lasts 2.3 ns. What is the total energy of the pulse
A Carnot engine absorbs 4.65×103 J from the hot reservoir and expels 3.12×103 J to the cold reservoir during each engine cycle. what is the temperature of the hot reservoir
A ten pound car wheel has a moment of inertia of 0.38 kg m2. What is the wheel's rotational kinetic energy
Suppose that suddenly the angular velocity of the moon wa about the earth quadrupled. Assuming conservation of angular omentum the distance between the earth and the moon must have suddenly doubled.
question an object moves at a constant velocity of 11 ms to the southwest for an inverval of 20 s. halfway through this
A singly charged ion of 7Li (an isotope of lithium) has a mass of 1.16×10?26kg, What is the radius of the ion's path in the magnetic field
A nuclear power plant generates 3000 MW of energy from nuclear reactions in reactor’s core. This energy is used to boil water and produce high pressure steam at 300 0C.
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