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A blinder of radius 0.12m and mass 4.5kg rolls without skipping along a frictionless track. It starts at rest and the track is 2.5m long inclined at an angle of 25 degrees. What is the speed of the cylinder when it reaches the bottom?
A solid disk rotates in the horizontal plane at an angular velocity of 0.0661 rad/s with respect to an axis perpendicular to the disk at its center. what is the angular velocity of the disk
A football punter accelerates a football from rest to a speed of 9 m/s during the time in which his toe is in contact with the ball, what average force does the punter exert on the ball
Carlos does a chin- up in gym class and raises himself 0.8 m. if Carlos has a mass of 62 kg, how much work does he accomplish
A mass spectrometer is used to examine the isotopes of uranium. Ions in the beam emerge from the velocity selector at a speed of 3.02 105 m/s and enter a uniform magnetic field of 0.625 T directed perpendicularly to the velocity of the ions.
Suppose the skateboarder shown in the drawing reaches a height of2.30 m above the right side of the semicircular ramp. He then makesan incomplete midair turn and ends up sliding down the right sideof the ramp on his back. When the skateboarder rea..
A modern-day zeppelin holds 9,030 m3 of helium. Compute its maximum payload at sea level. (Assume the helium and air to be at 0°C and 1 atm. The answer I get is 9391.2 kg but seems to be wrong answer and I have run out of ideas.
A 20.0kg light signal hangs from the end of a 7.0m uniform density pole of mass 12.0kg. The pole is free to swivel from the hinge at point A, What is the reaction force (magnitude and direction) at the hinge
an ac power generator produces 60 a (rms) at 4000 v. the voltage is stepped up by an ideal transformer, what is the turn ratio of the transformer
A 65.0 kg bungee jumper steps off abridge with a light bungee cord tied to her and to the bridge. The unstretched length of the cord is 11.0m. She reaches the bottom of her motion 36.0 m below the bridge before bouncing back
A straight, nonconducting plastic wire 8.50 cm long carries a charge density of +175 nC/m distributed uniformly along its length, Find the magnitude and direction of the electric field
Force F = (-1.0 N) + (1.0 N) acts on a particle with position vector r = (5.0 m) + (5.0 m). What is the torque on the particle about the origin
If the coefficient of static frictionbetween the bureau and the floor is 0.45, what is the minimum horizontal force a person must apply to start the bureau moving
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