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A square coil and a rectangular coil are each made from the same length of wire. Each contains a single turn. The long sides of the rectangle are twice as long as the short sides. Find the ratio of τsquare/τrectangle of the maximum torques that these coils experience in the same magnetic field when they contain the same current.
How much does it cost to cook food in a 12,000 W oven for 47.6 minutes? Assume electricity costs 8.0 cents per kW·h
A box of mass m, is released from rest and slides down a 3 m high frictionless chute. What is there common speed after the collision
The maximum speed of a 2.6-kg mass attached to a spring is 0.74 m/s, and the maximum force exerted on the mass is 11 N. What is the force constant of the spring
A Lucite planoconvex lens has one flat surface and one with R= 16.3cm. What are the locations of the red and yellow images formed by the lens
While moving down the track at 10.0 m/s, you uniformly accelerate to 32.0 m/s in 10 s. Illustrate what is the average net force that you have applied to the car during the 10 s interval?
(a) What must the initial speed of the ball be if the pitch is to arrive at the batter exactly 1.00 m above the ground? (b) How long does it take the ball to reach the batter? (c) If there were no gravity, at what angle would the pitch have to be ..
A proton is accelerated from rest across a potential difference of 4V. What is the power delivered to the proton by the magnetic field
A beam of particles is directed at a 0.014-kg tumor. There are 1.9 Ã- 1010 particles per second reaching the tumor, Find the biologically equivalent dose given to the tumor in 22 s
What net torque must be applied to the wheel. How several meters would the molecule.
A cylindrical solenoid 40cm long with a radius of 5 mm has 300 tightly wound turns uniformly distributed along its length. Around the middle of the solenoid is a two-turn rectangular loop 3 cm by 2 cm made of resistive wire having a resistance of ..
One rechargeable battery of mass 15.0 g delivers an average current of 18.0 mA to a compact disc player at 1.60 V for 2.40 h before the battery needs to be recharged. The recharger maintains a potential difference of 2.22 V across the battery and ..
A conducting bar of length script l moves to the right on two frictionless rails, Explain the origin of the energy being delivered to the resistor
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