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Your roommate is working on his bicycle and has the bike upside down. He spins the 56.0cm -diameter wheel, and you notice that a pebble stuck in the tread goes by three times every second.
Part A What is the pebble's speed?
Part B What is the pebble's acceleration?
A 72.3 kg man carrying a 5.23 kg box gets on an elevator. As the elevator accelerates upwards at 0.224 m/s^2, he feels the box is heavier, During this time, what is the weight on the floor from his feet
A long solenoid lying along the x-axis, as shown, has a 0.2 T field inside its coils. What is the magnitude of the magnetic force on the particle
A 0.481 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger, what is the initial acceleration of the metal cylinder
A 13 kg bucket of water of is suspended by a rope wrapped around a windlass that is a solid cylinder 0.400 m in diameter with mass 14.0 kg. The cylinder is pivoted on a frictionless axle through its center.
Styrofoam has a density of 300 kg/m^3 . What is the maximum mass that can hang without sinking from a 20.0cm -diameter Styrofoam sphere in water? Assume the volume of the mass is negligible compared to that of the sphere.
If the tension in each chain at the lowest point is 408 N, find the child's speed at the lowest point.
A rifle is aimed horizontally at a target 50 m away. The bullet hits the target 2.0 cm below the aim point. What is the bullet's flight time
in an exciting game, a baseball player manages to slide safely into second base. the mass of the player is 80.9 kg, find the magnitude of the frictional force
An electron and a proton are accelerated starting from rest through a potential difference of 10 million volts. Find the momentum (in MeV/c) and the kinetic energy (in MeV) of each
A uniform electric field of magnitude 256 V/m is directed in the negative y direction. A +12.9 uC charge moves from the origin to the point (x, y) = (20.0cm, 45.6 cm). What was the change in the potential energy of this charge? Through what potent..
A 150- crate, starting from rest, is pulled across a floor with a constant horizontal force of 360 . For the first 11 the floor is frictionless, and for the next 11 the coefficient of friction is 0.31. Illustrate what is the final speed of the c..
Two 3.50g beads (point charges) are hanging on threads and repel each other after being equally charged. What is the charge on each bead
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