Find the average induced emf during given interval
A circular loop of radius 30 cm is placed in an external magnetic field of strength 0.30 T so that the plane of the loop is perpendicular to the field. The loop is pulled out of the field in 0.30 s. Find the average induced emf during this interval.
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Loudspeaker are connected in paraelle across the terminals of an amplifier. assuming the speakers behave as resistors, calculate the equivilent resistance of the two speakers.
A magnifying glass has a converging lens of focal length of 17.4 cm. At what distance from a nickel should you hold this lens to get an image with a magnification of +2.40?
Car w/ mass os 1536 kg collides w/ wall and bounces back off the wall. The initial and final speeds are 12 m/s and 1.6 m/s. Collision lasted for .19 s, Find the magnitude of the impulse
A 5.00-g lead bullet traveling at 470 m/s is stopped by a large tree. If half the kinetic energy of the bullet is transformed into internal energy and remains with the bullet while the other half is transmitted to the tree, what is the increase in
An infinite line of charge has linear charge density 5.50 10-12 C/m. A proton (mass 1.67 10-27 kg, charge +1.60 10-19 C) is 18.0 cm from the line and moving directly toward the line at 1.20 103 m/s. How close does the proton get to the line of cha
An airplane needs to reach a velocity of 456 km/h to take off. On a 2000 m runway, what is the minimum acceleration necessary for the plane to take flight?
It then moves at a constant velocity of 23 m/s for 450 s. The train then slows down uniformly at 0.065 m/s2, until it stops. What is the acceleration during the first 6.1 km?
If the heavier block is removed and a downward force of 908 Newton's is supplied by a man pulling on the rope, what is the acceleration of the 412 Newton block? Why are the answers to (a) and (b) different?
The coefficient of kinetic friction is 0.20. A horizontal force of magnitude 57 N begins to pull directly on the block, as shown. In unit-vector notation, what are the resulting accelerations of (a) the block and (b) the slab?
Lithium has only two naturally occuring isotopes: lithiumi-6 and lithium-7. Lithium-6 has a mass of 6.01512 and makes up 7.42 percent of all naturally occuring lithium. Lithium-7 has a mass of 7.016 and makes up the remaining 92.58 percent. What i
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