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The planet Neptune has a satellite, Proteus, which travels in an orbit 1.180*10^8 m with a period of 1.12 days. Calculate the mass of Neptune from this information.
A horizontal force of magnitude 46.1 N pushes a block of mass 3.64 kg across a floor where the coefficient of kinetic friction is 0.554. find the increase in the kinetic energy of the block
A pinhole camera takes a picture of a building 200 m tall. If the height of the image on the back of the camera is 5 cm tall, how far is the camera from the building
What is the total force on the bottom of a swimming pool 29.5m by 9.1m whose uniform depth is 1.6m, What is the absolute pressure on the bottom of a swimming pool
A racket ball is struck in such a way that it leaves the racket with a speed of 4.87m/s in the horizontal direction. Find the height of the racket ball when it left the racket
A 151 kg car rounds a curve of radius 163 m at 46 m/s. The acceleration of gravity is 9.8 m/s2 . What force must the road exert on its tires to hold the car on course? find out its speed when it has moved?
a balloon contains 4.20 moles of a monatomic ideal gas. As energy is added to the system by heat, find work Wenv done by the gas in expanding the balloon
You measure distances from the center of a diffraction pattern (y) to a series of dark fringes on a screen, What is the wavelength of the laser you used to collect the data
A student sits on a rotating stool holding two 3.5 kg objects. When his arms are extended horizontally, Find the kinetic energy of the student before and after the objects are pulled in
Two point objects both having mass M are placed at positions (0,yM0) and (0,-yM0) in the 2D Cartesian coordinate system and cannot move. Find the total potential energy of the system
Consider a car driving at constant velocity. The force of friction acting on the car in Newtons is, Find the magnitude of f when v = 50 miles/h
A researcher would like to perform an experiment in a zero magnetic field, which means that the field of the earth must be cancelled. What current is needed in the solenoid's wires
A bug of mass 2.6 g is sitting at the edge of a CD of radius 6.0 cm. what is the angular momentum of the bug
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