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A wire loop of area 150cm^2 lies on a horizontal table top. An electromagnet produces a magnetic field of .260T directed straight up through the loop. Over a period of .40s, the field is reduced to 0.060T.
A) find the magnitude of the induced emf in the loop during the .40s interval.
B) CW or CCW?
An 81.0 N box is pulled 22.0 m up a 30° incline by an applied force of 102 N that points upward, parallel to the incline. calculate the change in the kinetic energy of the box
The tension in a 2.5-m-long, 1.2-cm-diameter steel cable (? = 7800 kg/m3) is 850 N. What is the fundamental frequency of vibration of the cable
A ball of mass 0.640 kg moving east (+x direction) with a speed of 3.20 m/s collides head-on with a 0.480 kg ball at rest. If the collision is completely elastic, what will be the speed and direction of each ball after the collision?
an open tube of length l 2.07 m and cross-sectional area a 4.60 cm2 is fixed to the top of a cylindrical barrel of
An audio amplifier provides an alternating rms potential difference of 15.0V. A loudspeaker connected to the amplifier has a resistance of 10.4 ohm. what is the rms current in the speaker
You normally drive on the freeway between San Diego and Los Angeles at an average speed of 91 km/h (57 mi/h), and the trip takes 2 h and 42 min. How much longer does the trip take
A flywheel rotates at 7200 rev/min when the power is suddenly cut off. How many revolutions does the flywheel makes before coming to rest
If the coefficient of kinetic friction between the sofa and the ramp is 0.340, and the sofa has an acceleration of 0.900 m/s2, find the tension in the rope
A 400 kg roller coaster cart travels along the inside of a vertical circular track of radius 10 m. Find the cart's speed one quarter of a loop later
q1. a 260 wooden raft floats on a lake. when an 80 man stands on the raft it sinks 5.0 deeper into the water. when he
To stretch a certain spring by 2.50cm from its equilibrium position requires 9.00J of work, What was the maximum force required to stretch it by that distance
A series RLC circuit has a resistance of 12 ohms and an impedance of 10 ohms, what average pewer is delieverd to circuit
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