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A 109-kg horizontal platform is a uniform disk of radius 1.61 m and can rotate about the vertical axis through its center. A 69.9-kg person stands on the platform at a distance of 1.07 m from the center and a 29.9-kg dog sits on the platform near the person, 1.43 m from the center. Find the moment of inertia of this system, consisting of the platform and its population, with respect to the axis
A 5kg piece of metal displaces 0.75L of water when submerged. What is the buoyant force on the piece of metal? Give your answer in Newtons
An electric vehicle starts from rest and accelerates at a rate of 1.8 m/s2 in a straight line until it reaches a speed of 29 m/s. How far does the vehicle move from start to stop
An object made of a single atomic element weighs 2.4500 N in air and 2.1387 N when completely submerged in water. Calculate the density of the object
question1there is three vectors and another vector must be added to the following three vectors.a sketch a vector
A child throws a snowball over a wall. The horizontal distance which the snowball travels is 3.83 m. Determine the initial speed of the snowball
An object with a mass of m = 5.5 kg is attached to the free end of a light string wrapped around a reel of radius R = 0.275 m and mass of M = 3.00 kg. compute the magnitude of the acceleration of the object
A golfer hits a shot to a green that is elevated 3.0 m above the point where the ball is struck. find the speed of the ball just before it lands
A soccer player kicks a ball from ground level with a velocity of 23.5 m/s 38.20 above the horizontal and it lands at ground level. determine the "hang time" of the ball
When an electric turntable is first switched on, it accelerates at a constant rate through (+)1.25 revolutions in order to attain its full operating speed of 78.0 rpm.
Mary and her younger brother Alex decide to ride the carousel at the State Fair. Mary sits on one of the horses in the outer section at a distance of 2.0 m from the center. What is Mary's angular speed M and tangential speed vM
When light of wavelength 350 nm falls on a potassium surface, electrons having a maximum kinetic energy of 1.31 eV are emitted. determine the work function of potassium
A sled weighing 200 N is held in place by static friction on a 15? incline, What is the coefficient of static friction between the sled and the incline
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