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A grinding wheel in the shape of a solid disk is 0.300 m in diameter and has a mass of 2.50 kg . The wheel is rotating at 2200 about an axis through its center. What is its kinetic energy? How far would it have to drop in free fall to acquire the same amount of kinetic energy?
A frictionless plane is 10.0 m long and inclined at 34.0°. A sled starts at the bottom with an initial speed of 5.90 m/s up the incline. Determine the initial speed of the second sled
A 3 kg block moves down a hill that makes a 40° angle with the horizontal direction, what is the magnitude of the acceleration of the block
The earth's magnetic field is approximately 30 microTesla. An AC transmission wire carries a current of 10 A (RMS). What is the peak current in the wire? What is the maximum force per meter in the wire?
Suppose now that the apparatus is sealed, and the temperature rises to 40.0o C. Find the pressure inside the apparatus now
q1. the wire is made up of atoms with valence 2 and molecular mass 80 gmole where u 1.5605 times 10-27 kg is the mass
Show that the total charge contained in the charge distribution is Q. Show that the electric field in the region r = R is identical to that produced by a point charge Q at r = 0.
A thin, flexible metal plate attached at one end to the platform, can be used to measure mass. When the free end of the plate is pulled down and released, it vibrates in simple harmonic motion with a period that depends on the mass attached to the pl..
In Figure (a), two circular loops with different currents but the same radius of 10. cm, are centered on a y axis. They are initially separated by distance L = 7.5 cm, with loop 2 positioned at the origin of the axis
A wheeled cart is shoved up an inclined plane with an unknown initial speed. What was the cart's initial speed
Joseph is standing 0.80 meters in front of a big spherical mirror (concave mirror), and sees his image upright and magnified 3.0x bigger than he is. Find the radius of curvature of the mirror
A sledge loaded with bricks has a total mass of 17.9 kg and is pulled at constant speed by a rope inclined at 19.8° above the horizontal. What is the tension in the rope
A tourist being chased by an angry bear is running in a straight line toward his car at a speed of 5.47 m/s. The car is a distance d away, What is the maximum possible value for d
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