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A uniform disk that has a mass M rotates freely about a horizontal axis that goes during the center and is perpendicular to the plane of the disk. A particle of mass m rests at the top of the disk on the rim directly above the pivot. As the particle reaches its lowest point what is the (a) angular speed of the disk and (b) the force exerted by the disk on the particle
The density of bcc iron is 7900 kg/m3 and its atomic weight is 56. Calculate the side of the cubic unit cell and the interatomic spacing
A 2 200-kg pile driver is used to drive a steel I-beam into the ground. The pile driver falls 4.20 m before coming into contact with the top of the beam, Find the magnitude upwards
a light ray traveling in a slab of crown glass surrounded by air. the ray is incident on the right surface at an angle
A person walks into a room that has, on opposite walls, two plane mirrors producing multiple images. Find the distances from theperson to the first three images seen in the left-hand mirror, whenthe person is 5.00 ft from the mirror on the left wall ..
Of the following materials, which would you expect to be paramagnetic, and which diamagnetic? Aluminum, copper, copper chloride, carbon, lead, nitrogen gas, table salt, sodium, sulfur, water. Be resourceful and verify your predictions. Are there any ..
A bat moving with a speed of 3.25 m/s and emitting sound of 36.0 kHz approaches a moth at rest on a tree trunk. What frequency is heard by the moth
a 2.00 kg projectile is fired at an angle of 20.0deg above the horizontal. what is the magnitude of the net force
A bullet is fired horizontally from a 100 m, t all building with a speed of 900 m? How long will it take to hit the ground?
The electric potential at a position located a distance of 19.8 mm from a positive point charge of 7.80×10-9C, Calculate the value of the second charge
compute the accelerations experienced by the blood.
A meter stick of aluminum is bent at its midpoint so that the two halfs are at right angles and the midpoint is at the origin of the x,y coordinate system
the filament of a light bulb has a resistance of 570 . a voltage of 120 v is connected across the filament. how much
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