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What is the crankshaft's angular acceleration?
How many revolutions does it make while reaching 3600{\rm rpm}?
An ice-making machine operates in a Carnot cycle. It takes heat from water at 0.0°C and rejects heat to a room at 22.5°C, How much heat is discharged into the room
A spherical balloon has a radius of 7.35m and is filled with helium. Determine the largest mass of cargo the balloon can lift
A uniform metal rod, with a mass of 3 {rm kg} and a length of 1.2 {rm m}, is attached to a wall by the hinge at its base. A horizontal wire bolted to the wall 0.51 m above the base of the rod holds the rod at an angle of 25{rm ^circ} above the hor..
Now suppose the gliders in the previous problem collide completely inelastically so that they stick together rather than rebounding off each other after they collide. Compare the initial and final kinetic energies
Identify the equation below which is dimensionally incorrect. A, x, y and r have units of length. k here has units of inverse length. vo and v have units of velocity. a and g have units of acceleration. w has units of inverse time.
An electron and a positron, each moving at 3.0*10^5 m/s, collide head on, disappear, Determine the momentum of each photon
A 50g marble moving at 2.2m/s strikes a 30g marble at rest. Assume the collision is perfectly elastic and the marbles collide head-on. A.What is the speed of the first marble immediately after the collision? B.What is the speed of the second marbl..
An air-track glider attached to a spring oscillates between the 11.4 cm mark and the 57.27 cm mark on the track. What is the maximum speed of the glider in cm/s
At the instant a traffic light turns green a car that has been waiting at the intersection starts ahead with a constant acceleration of 2.00 m/s2. Determine the speed the car when it passes the truck
In a section of horizontal pipe with a diameter of 3.0 cm, the pressure is 100 kPa and water is flowing with a speed of 1.5 m/s. What is the pressure in the narrower region
The man completely exhales and jumps into the deep end of a pool with a depth of 9 feet. Calculate the buoyant force of the water acting on the man with his breath completely exhaled
How much energy must be added to a bowl of 125 popcorn kernels in order for them to reach a popping temperature of 175celsious? assume that their initial temperature is 21 celsious, that specific heat capacity of popcorn is 1650 j/kgcelsious, and ..
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