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A bicycle is racing around on a horizontal surface in a circle of radius 26 m. The force exerted by the road on the bicycle makes an angle of 25 degrees with the vertical. What is its speed? If the frictional force is one-third the maximum value, what is the coefficient of static friction?
Two masses, M=3.8kg and m=2kg, are hung over a massless, frictionless pulley. What is the downward acceleration of mass M
If your boat weighs 1200N, how much water will it displace when it is floating motionless at the surface of a lake
Two equal, but oppositely charged particles are attracted to each other electrically. evaluate the magnitude of the charges
A horizontal block-spring system with the block on a frictionless surface has total mechanical energy E = 41.0 J, What is the kinetic energy of the system at the equilibrium point
A sealed closed tube length=1.5 m of unknown gas, frequency = 210 Hz. what is the speed of sound in that gas
Two billiard balls of equal mass and speed moving against each other collide and bounce backwards away from each other. compare the forces from each ball on the other
An electric power station is producing 1.60 × 103 W of power that is to be sent to a small town located 11 km away, Find the power lost in heating the wires if the voltage is stepped up from 130 V to 1400 V
A radio reciever can pick up signals with peak electric fields as weak as 425muV/m. What is the average intensity of such a signal
A vertical container with base area measuring 14.0 cm by 17.0 cm isbeing filled with identical pieces of candy, each witha volumeof 54.0 mm3 and a massof 0.0202 g.
Two nonconservative forces are present: friction does -2.00 104 J of work on the car, and a chain mechanism does +3.00 104 J of work to help the car up a long climb. Illustrate what is the change in the car's kinetic energy, ΔKE = KEf - KE0, fro..
A patient in therapy has a forearm that weighs 20.5N and lifts a 112.0N. The only other significant force on his forearm come from the biceps muscles (which acts perpendicularly to the forearm) and the forces at the elbow. If the biceps produce a ..
A 5000 kg truck moving right at 20 m/s collides and sticks to a 2000 kg car moving left at 10 m/s. If momentum is conserved, then what is the velocity after the collision
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