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A solid sphere rolling without slipping on a rough horizontal surface with a linear speed 21m/s collides elastically with a fixed, smooth vertical wall. Find the speed of the solid sphere after it has started pure rolling in the backward direction. The radius of sphere being 1m.
If you take data in paris of x and y related by the equation 5x = cy^4+7. What would you graph to linearize the data. Linearize it and what would the slope and intercept be
A river has a steady speed of 0.482 m/s. A student swims upstream a distance of 1.00 km and swims back to the starting point. If the student can swim at a speed of 1.24 m/s in still water, how long does the trip take
what are the ax and by components of the vector that must be added to the following three vectors so that the sum of
The Earth is constantly being bombarded by cosmic rays, which consist mostly of protons. what is the total charge incident on the atmosphere
Imagine holding a really light object on top of a really massive object, and then dropping both of them at the same time onto the ground, how high will the little object bounce
A box 10 kg in massis sitting 4 meters above the ground on the edge of a skateborders half-pipe ramp. What will the speed of both boxes be after collison
A parachutist and her parachuting equipment have the combined mass of 121 kg. Her terminal velocity is 5.30 m/s with the parachute open. Her parachute has a cross-sectional area of 35.80 m^2. The density of air at that altitude is 1.23kg/m^3. What is..
The helicopter in the drawing is moving horizontally to the right at a constant velocity. The weight of the helicopter is W=59600 N. What is the magnitude of the lift force
If your conducting an experiment by heating a Styrofoam cup of water with an electric current of 2.8A, a voltage of 11V, How much time does it take to complete the experiment
An infinite line of charge with linear density ?1 = 8.5 ?C/m is positioned along the axis of a thick insulating shell of inner radius a = 2.9 cm and outer radius b = 4.0 cm. What is the linear charge density of the insulating shell
The track for a racing event was designed so that riders jump off the slope at 30 angle, from a height of 5 ft. Determine the maximum height he attains
A solid piece of lead has a mass of 29.18 g and a volume of 2.60 cm3. From these data, calculate the density of lead
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