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A 17.5 kg cart is moving with a velocity of 7.65 m/s down a level hallway. A constant force of -10.0 N acts on the cart, and its velocity becomes 3.20 m/s. Assume that air resistance is negligible.
a) What is the change in kinetic energy of the cart?b) How much work was done on the cart?c) How far did the cart move while the force acted?
A communications satellite with a mass of 430 is in a circular orbit about the Earth. Calculate the gravitational force exerted on the satellite by the Earth when it is in orbit
A string that is under 47.0N of tension has linear density 5.80g/m. What is the maximum velocity of a particle on the string
A speaker generating a tone at 285 Hz is moving towards a stationary observer with a speed of 35 m/s
How to design atrium of a new building
A hydraulic jack has an input piston area of 4.5 cm^2 and an output piston area of 21 cm^2. what force must be applied to the input piston in order to raise a load of 850 N
A refrigerator does 135.0 J of work to remove 540.0 J of heat from its cold compartement. How much heat per cycle is exhausted to the kitchen
A neutron collides elastically with a helium nucleus (at rest initially) whose mass is four times that of the neutron. What is the speed of the helium nucleus after the collision
You are working out on a rowing machine. Each time you pull the rowing bar (which simulates the "oars") toward you, compute the magnitude of the force that you exert on the handle
A car with mass of 1000.0 kg accelerates from 0 m/s to 40.0 m/s in 11.0 s. What is the average mechanical power output of the engine
a wave on a string is described by d x t 2.00sin12.57radmx-638radst where x is in m and t is in s. the linear
The crankshaft in a race car goes from rest to 3540{\rm rpm} in 3.0{\rm s}. What is the crankshaft's angular acceleration
a hockey puck slides off the edge of a table with an initial velocity of 22.0 ms and experiences no air resistance. the
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