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A circular loop in the plane of the screen lies in a 0.61 T magnetic field pointing into the screen. If the loop's diameter changes from 21.0 cm to 6.0 cm in 0.50 s, determine the following.
(a) What is the direction of the induced current?
clockwise
counterclockwise
(b) What is the magnitude of the average induced emf?
mV
(c) If the coil resistance is 2.5 , what is the average induced current?
mA
The intensity of sunlight striking Earth's upper atmosphere (called the solar constant) is 1.35 kW/m2. Find the radiation pressure at the surface of the sun
q1. a motorcycle has a constant speed of 29.0 ms as it passes over the top of a hill whose radius of curvature is 117
Two uniform solid cylinders, each rotating about its central (longitudinal) axis, have the same mass of 3.74 kg, What is the rotational kinetic energy of the smaller cylinder
An 82.0 kg-diver stands at the edge of a light 5.00-m diving board, which is supported by two pillars 1.60 m apart, Find the force exerted by pillar A
What impulse Ft should be supplied to bring the ball to rest? If the ball is stopped in 0.03 s, what is the average force of the ball on the catcher's hand.
A flowerpot is accidently knocked off the edge of a balcony 50 m above the ground. Find the velocity and acceleration of the flowerpot at t=2.0s
A particular engine has a power output of 4.00 kW and an efficiency of 23.0%. Assume the engine expels 7000 J of energy in each cycle. Find the energy absorbed in each cycle
An Earth satellite moves in a circular orbit 644 km above Earth's surface with a period of 97.40 min, What are the magnitude of the centripetal acceleration of the satellite
A container is filled to the brim with 1.6 L of mercury at 20°C. As the temperature of the container and mercury is increased to 49°C, compute the linear expansion coefficient of the material
A horizontal plank of mass m and length L is pivoted at one end. The plank's other end is supported by a spring of force constant k. The moment of inertia of the plank about the pivot is .
q1. two bicycle tires are set rolling with the equivalent initial speed of 5.0 ms along a long straight road and
An athlete swims the length L of a pool in a time t1 and makes the return trip to the starting poisition in a time t2. What is her average speed for the round trip
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