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A 1200-turn coil of wire that is 2.1 cm in diameter is in a magnetic field that drops from 0.11 T to 0 in 12 ms . The axis of the coil is parallel to the field.
What is the emf of the coil?
A 5.20 g pop up toy is compressed 1.50 cm and pops up to the height of 50 cm the spring constant is 270 Nm. What is the loss of energy.
Evalute the acceleration of each block and the tension in the string? Repeat the problem, adding a coefficient of kinetic friction between each block and the surface of 0.10.
What is the average velocity (Vrms) of 0.75kg of air at room temperature (20°C), What is the average kinetic energy of air at 20°C, using the velocity you just calculated
A circus clown weighing 175 pounds is fired from a cannon at 50 degrees above the horizontal. What was the initial velocity of the clown
Suppose 12.5 g of oxygen (O2, 32.0 g/mol) is heated at constant atmospheric pressure from 19.0°C to 100°C. How many moles of oxygen are present
A rocket, which is in deep space and initially at rest relative to an inertial reference frame, has a mass of 59.6 × 105 kg, of which 7.27 × 105 kg is fuel. What is the rocket's thrust
The hydrogen alpha emission spectra has a 658.28 nanometer wavelength. What is the red-shifted wavelength of hydrogen alpha light from the bootes galaxy cluster
A brick is thrown upward from the top of a building at an angle of 45° to the horizontal and with an initial speed of 10 m/s. If the brick is in flight for 2.8 s, how tall is the building.
if the radius of the equipotential surface of a point charge is 10.5 m, what are the magnitude and sign of the point charge
The work done by an external force to move a -8.90charge from point a to point b is 1.80×10?3 . If the charge was started from rest and had 4.87×10^4 of kinetic energy when it reached point b, what must be the potential difference between a and b?
A light bulb is wired in series with a 131-? resistor, and they are connected across a 120-V source. What are the two possible resistances of the light bulb
The drawing shows two boxes resting on frictionless ramps. One box is relatively light and sits on a steep ramp. determine the speed of the lighter box
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