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John carries one heavy box and kicks the other box so that it slides for a little bit and then stops, and he continues this until he reaches his destination. His kicks to the box have an acceleration of magnitude 4m/s^2.
What is the coefficient of kinetic friction between the box and the driveway?
A planet orbits a star once every 2.99 107 s in a nearly circular orbit of radius 1.42 1011 m. With respect to the star, determine the angular speed of the planet
A 13 g bullet traveling 230 m/s penetrates a 2.0 kg block of wood and emerges going 170 m/s. how fast does it move after the bullet emerges
A proton accelerates from rest in a uniform electric field of 640N/C. At some later time, its speed is 1.20 X 10e6 m/s. What is its kinetic energy at the later time
An object of 50.5 N is attached to the free end of a light string wrapped around a reel with a radius of 0.250 m and mass of 3.00 kg. The reel is a solid disk, free to rotate in a vertical plane about the horizontal axis passing through its center..
What is the direction of the force that the unknown charge exerts on the charge of magnitude 0.580uC?
An ice cube of mass ma and specific heat Ci is initially at temperature T1, where T1 is less than 273K. If L is the latent heat of fusion of water, and the specific heat of water is Cw, how much energy is needed to convert the ice cube to water at ..
wo sources produce coherent light waves that come together at a detector located 1.60000 mm from one source, what is the longest possible value for the wavelength
A 6.00uC charge is placed at the origin and a second charge is placed on the x-axis at x=0.300m. what is the force on the charge at the origin
a certain lcd projector contains a single thin lens. an object23.5mm high is to be projected so that its image fills a
A 5.00 m long rigid beam with a mass of 110.0 kg is supported at each end. How much upward force does each support exert on the beam
Hans and Franz pick up the 2.0m long garden. The chair weights 200 N and the center of gravity is 80 cm from Hans end. How much weight does Hans have to lift
two metal spheres have a radius of 25 cm and the same mass except one is solid and the other is hollow. determine the
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