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Johnny lets a 0.5kg ball roll on the floor of the classroom. The ball gradually slows down. The coefficient of friction between the floor and the ball is 0.18. Draw a free body diagram and calculate the acceleration of the ball.
An airplane must reach a speed of 172 mi/h to take off. If the runway is 470 m long, what is the minimum value of the acceleration that would allow the airplane to take off productively.
A flat loop of wire consisting consisting of 4 turns, each of which encloses 200cm^2, is oriented perpendicularly to a magnetic field that increases uniformly in a magnitude from 10.0mT to 25 mT in 5.0ms. If the coil has a total resistance of 5.0 ..
A stunt man drives a car at a speed of 20m/s off a 30-m-high cliff, How far from the base of the cliff does the car land and What is the car's impact speed
A kayaker paddles with a power output of 60.0 W to maintain a steady speed of 1.40 m/s, by what factor does the kayaker's speed change
Calculate how much work is done when 5 moles of an ideal gas at27ºC expand is othermally from an initial volume of 1 liter toa final volume of 2 liters.
A blue ball is thrown upward with an initial speed of 23.3 m/s, from a height of 0.7 meters above the ground. 2.9 seconds after the blue ball is thrown, What is the speed of the blue ball when it reaches its maximum height
Determine the kinetic energy of the proton moving in the labarotory towards a stationary electron so that a neutron is the only final particle
A child goes down a playground slide that is inclined at an angle of 25.0° below the horizontal. Find the acceleration of the child
In a Young's double-slit experiment, the wavelength of the light utilized is 515 nm (in vacuum), and the separation among the slits is 3.00*10-6m.
A Cu wire of 60m length is in a maganetic field of1.20T. If it has a mass of 25g, what is the minimum current through the wire
The radius of the aorta is about 1.0cm , and the blood passing through it has a speed of about 46cm/s, Calculate the pressure drop per cm along the aorta.
A transformer has an input coil with Nin = 200 turns and Nout = 850 turns. what is the voltage across the output circuit
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