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A horizontal force F a of magnitude 19.0 N is applied to a 3.16 kg book as the book slides a distance d = 0.70 m up a frictionless ramp at angle theta = 30 degree.
(a) During he displacement, what is the net work done on the book by F ,the gravitational force on the book, and the normal force on the book?
(b) If the book has zero kinetic energy at the start of the displacement, what is its speed at the end of the displacement?
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What is this force as a fraction of the runner's weight?
A circuit consists on an emf of 48 V, a resistor with R = 8.0 ohms, an inductor with L = 2.0 H, and a switch, all connected in series. At this instant, what is the current in the resistor
A spring of spring constant k = 340 Nm-1 is used to launch a 1.5-kg block along a horizontal surface by compressing the spring by a distance of 18 cm. If the coefficient of sliding friction between the block and the surface is 0.25, how far does the ..
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