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Starting from rest, a 94-kg firefighter slides down a fire pole.The average frictional force everted on him by the pole has amagnitude of 810 N, and his speed at the bottom of the pole is 3.9m/s. How far did he slide down the pole?
a 60.0-kg mass person wishes to push a 100-kg mass box across a level floor. the coefficient of static friction between
A 3.0kg block rests on a tabletop. A 6.00 g bullet moving horizontally with a speed of 180 m/s is shot into the block and sticks in it. Find the speed of block just after full impact
An interior decorator install an aquarium that is 0.50 m wide, 2.00 deep, and 4.00 m long. what is the percent uncertainty in the volume
A 2 kg mass is placed at rest against a spring of spring constant 5 N/m, which is compressed by 10 cm from its equilibrium position. compute the amount of potential energy stored in the spring
A machine part rotates at an angular speed of 0.56 rad/s; its speed is then increased to 3.46 rad/s using an angular acceleration of 0.44 rad/s2, Find the angle through which the part rotates
A circuit contains sic 60 W lamps with a resistance of 240 ohm each and a 10 ohm heater connected in parallel. The voltage across the circuit is 120 V. Find the current in the circuit.
An elderly sailor is shipwrecked on a desert island, but manages to save his eyeglasses. What is the magnifying power of the telescope he can construct with these lenses
A patient is going to be prescribed bifocals which will be 3.20 cm from the eye, Without the bifocals, what is the patient's near point
Neglect air resistance, as well as any energy absorbed by the pole, and clerify her altitude as she crosses the bar.
Calculate the expression for electric field around and infinite line of charge, which has a line charge density lambda (using Gauss?s Law, cylindrical Gaussian surface). Calculate the magnitude of electric field at a distance of 10 cm from line if th..
Two circular metal plates of radius 0.17 m and thickness 8.5 mm are used in a parallel plate capacitor. A gap of 1.7 mm is left between the plates, What is the capacitance of this capacitor
A fighter jet is launched from the aircraft carrier with the aid of its own engines and a steam powered catapult. The thrust of its engines is 2.3E5N. In being launched from rest, it moves a distance of 87m and has a kinetic energy of 4.5E7J at li..
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