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Find the work that must be done to increase the speed of the particle of mass 1kg from 2m/s to 6m/s over the distance of 10m. A constant friction force f=2N acts over the entire distance.
One recent study has shown that x rays with a wavelength of 0.0050 nm can produce significant numbers of mutations in human cells. Assuming that the bond energy holding together a water molecule is typical, use table 25.1 in the textbook to estimate ..
The drawing shows a bicycle wheel resting against a small step whose height is h = 0.108 m. What is the magnitude of the force when this happens
A 100 gram iron block that has been heated to 200 degrees Celsius, What is the final temperature of the system
A 450g rubber ball is dropped from 2.0m above the floor. After the bounce, the ball only rises to a height of 1.5m above the floor. find the amount of heat generated when the ball hits the floor
A railroad car of mass 2.5 104 kg moving at 3.50 m/s collides and couples with two coupled railroad cars, How much kinetic energy is lost in the collision
Two students stand opposite each other on the rim of the merry-go-round of 6m diameter and rotating at 12 rev/minute. Calculate the coriolis force on the ball
A beam of light is traveling in air and strikes a material. The angles of incidence and refraction are 58.8°, Obtain the speed of light in the material
a 50 kg sprinter, starting from rest, runs 50 m in 7.0 s at a constant acceleration. what is the sprinter's power output during the final 2.0 s
A 0.500-kg glider, attached to the end of an ideal spring with force constant k=450 n/m, undergoes simple harmonic motion with an amplitude 0.040 m. Compute the maximum speed of the glider
A mechanic pushes a 2.4 103 kg car from rest to a speed of v, doing 5100 J of work in the process. During this time, the car moves 29.0 m. find the speed v and horizontal force exerted on the car
A spring with spring constant 14 hangs from the ceiling. A ball is attached to the spring and allowed to come to rest. It is then pulled down 3.0 and released. The ball makes 17 oscillations in 16 seconds. What is it the mass of ball.
a car traveling on a downhill grade has a grade resistance of -145lb. what is the weight of the car? which has the
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