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A 1170 kg block of granite is pulled up an incline with l = 40.0 m at a constant speed of 1.76 m/s by a steam winch. The coefficient of kinetic friction between the block and incline is 0.40 and the height h of the incline is 30.0 m. What is the power of the winch?
A 1 041-kg satellite orbits the Earth at a constant altitude of 103-km. What is the change in the system's potential energy
A thin double-convex lens is intended to focus the image of an object onto a screen so that the image is life-sized on the screen. find the total distance between the object and the image
You're driving down the highway late one night at 20 m/s while a deer steps onto the road 44m in front of you. Your reaction time before stepping on the brakes is 0.50 s, and the maximum deceleration of your car is 11m/s^2 .How much distance is be..
what is the magnitude FN at the highest point. The positive charges are arranged in a square. sides- .10 m the top right is 9 nC bottom right is 3 nC and the bottom left is 1 nC. find the magnitude of the electric field at the fourth corner of the ..
question1man pushing a mop across a floor causes it to undergo two displacements. first has the magnitude of 154 cm and
The transverse displacement (y) of a wave is given as a function of position (x in meters) and time (t in seconds) by the expression to the right. Determine the wavelength, frequency, period, and phase constant of this waveform.
Compute the velocity of the electron assuming that hydrogen is described by the Rutherford-Bohr model
A grade school student plans to build a 31-power telescope as a science fair project. She starts with a magnifying glass with a focal length of 4.8cm as the eyepiece
A 3.68-kg fish swimming 1.33 m/s swallows an absent-minded 6.42-kg fish swimming toward it at a velocity that brings both fish to a halt immediately after lunch
A fountain designed to spray a column of water 10 m into the air has a 3 cm diameter nozzle at ground level. find the necessary absolute pressure the pump must exert
A Lucite planoconvex lens has one flat surface and one with R= 16.3cm. What are the locations of the red and yellow images formed by the lens
A railroad car with a mass of 20,000 kg rolls into a second stationary car with a mass of 40,000 kg. How fast was the first car moving before the collision
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