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The figure shows a closed surface. Along the flat top face, which has a radius of 4.8 cm, a perpendicular field B→ of magnitude 0.13 T is directed outward. Along the flat bottom face, a magnetic flux of 0.85 mWb is directed outward. What are the (a) magnitude and (b) direction (inward or outward) of the magnetic flux through the curved part of the surface?
Mars has a mass of 6.42 1023 kg and a radius of 3.40 106 m. Assume it is a uniform solid sphere. The distance of Mars from the Sun is 2.28 1011 m. What is the rotational kinetic energy of Mars on its axis
In object A indicated in the figure, what magnitude of force F is needed to put the object into rotational equilibrium about the axis A shown?
A wire is attached to a ceiling and a brass ball. The tension on the wire is T=120N. What is the new weight of the ball
As you look out of your window, which is 1.3 m tall, you observe that it takes the ball 0.18 s to traverse the length of the window. Determine how high above the top of your window the ball was dropped. Ignore the effects of air resistance.
A concave mirror has a focal length of 25.8 cm. The distance between an object and its image is 51.4 cm. Find (a) the object and (b) image distances, assuming that the object lies beyond the center of curvature and (c) the object and (d) image distan..
A centrifuge spins up from rest to its maximum angular velocity of 5550 rpm with constant angular acceleration in 44 s. How many revolutions were made before it reached its maximum angular velocity
Two metal spheres, each of mass 20 g and initially at rest, are dropped from a height of 9 m in an evacuated chamber. Find the difference in final speeds of the two spheres
Calculate the period a satellite orbiting the moon, 93km above the moons surface. Ignore the effects of the Earth.The radius of the moon is 1740 km
A beam of protons moves in a circle of radius 0.34 m. The protons move perpendicular to a 0.29-T magnetic field. (a) What is the speed of each proton? (b) Determine the magnitude of the centripetal force that acts on each proton
Pretend you are cleaning your garage but the big door is stuck. You can only move things through the smaller "people" door. So the cars and riding lawn mower have to stay in the garage.
A carpenter is driving a nail into a board. The 1.25 kg hammer moves at 8.85 m/s when it strikes the nail. What is the change in length of the nail
a spherical conductor with a total charge of 12 micro-coulombs has a radius of 6 cm. what is the magnitude of the
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