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A man drags a table 4.30 m across the floor, exerting a constant force of 46.0 N, directed 29.0° above the horizontal.
(a) Find the work done by the applied force.
(b) How much work is done by friction? Assume the table's velocity is constant.
You cool a 130.0g slug of red-hot iron (temperature 745 ?C) by dropping it into an insulated cup of negligible mass containing 70.0g of water at 20.0 ?C. what is the final mass of the iron and the remaining water
A beam of parallel light, 1.50 mm in diameter passes through a lens with a focal length of 13.7 cm. What is the distance between the two lenses
A gas mixture occupies a volume of 1.4m^3 at a temperature of 65 C and a pressure of 350 kPa. determine the molcular weight of the gas
Consider an athlete who jumps a horizontal distance of 9m after reaching a maximum height of 1.5m. What was the takeoff speed v0 of the athlete
Two rigid rods are oriented parallel to each other and to the ground. The rods carry the same current in the same direction. Determine the current in the rods
You throw a ball horizontally off a roof. the time until it lands is determined only by The height of the roof and it's initial speed
A capacitor that is initially uncharged is connected in series with a resistor and an emf source with E=110V, What is the resistance of the resistor
two parallel infinite sheets carry positive unifrom surface charge densities sigma and 3 sigma. what is the magnetude of electrci field between the sheets
Your plane reaches its takeoff runway and then holds for 5.0 min because of air-traffic congestion. What is its takeoff speed
An artificial satellite circling the Earth completes each orbit in 133 minutes. Find the altitude of the satellite
A laser with wavelength 650 nm is incident on a single slit with width 10 mm. A screen is placed 1 m beyond the slit. How far apart will the first dark bands on either side of the central maximum be?
question1a diver springs upward from a board that is 2.85 meters above the water. at an instant she contacts the water
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