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A pencil, 15.7 cm long, is released from a vertical position with the eraser end resting on a table. The eraser does not slip. Treat the pencil like a uniform rod. What is the angular speed of the pencil just before it hits the table?
q1. a guitar string is 75 cm long and has a mass of 3.8 g. from the bridge to the support post l is 60 cm and the
A horizontal rifle is fired at a bull's-eye. The muzzle speed of the bullet is 671 m/s. The gun is pointed directly at the center of the bull's-eye, but the bullet strikes the target 0.029 m below the center. What is the horizontal distance betwee..
A bird stands on an electric transmission line carrying 3100 A. of current. The line has 4.0E-05 ohm resistance per meter, What voltage does the bird feel
A 265.0 kg block of ice at 0o C is placed in a large lake. The temperature of the lake is just slightly higher than 0o C, and the ice melts. What is the entropy change of the lake
The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. find the magnitude of the electric field within the cell membrane
The length between lenses equals 1m, the eyepiece has a focal point of 32mm, what is the magnification of an object at infinity
An ice cube slides from rest without friction down a long inclined ramp that makes an angle of 35.8 o with the horizontal. What is the speed of the cube
neglect the initial speed of the roller coaster. A neautral water molecule in its vapor state has an electric dipole moment of magnitude 6.2x10^-30 C.m. How far apart are molecule's center of positive and negative charge.
q1.a grinding wheel initially at rest is rotated with constant angular acceleration of 3.73 rads2 for 9.03 s. the wheel
A 65-g ice cube at 0°C is placed in 665 g of water at 30°C. What is the final temperature of the mixture? °C, What is the final temperature of the water after the ice has melted
carnival ride has a large horizontal steel disc of radius 5m from which cars are suspended by a 6m long chain. the disx is rotated about its axis so that the cars swing out and revolve in a circular path. at operation speed the angle of the chains ..
A ceiling fan with 84cm diameter blades is turning at 61rpm. Assume the fan coasts to a stop 25 after being turned off. What is the speed of tip of a blade 10 s after the fan is turned off.
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