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A skid mark has length 25 m. You measure the coefficient of friction between the tire and road as 0.50. Use work and energy (not force and momentum) to determine the initial speed of the car.
A monatomic ideal gas is held in a thermally insulated container with a volume of 0.0850m^3 . The pressure of the gas is 105kPa , and its temperature is 357K a)To what volume must the gas be compressed to increase its pressure to 150kPa b)At what ..
He would like a prescription for contact lenses to serve the same purpose. What is the exact contact lens prescription, in diopters.
What is the tension in each cable if angle between each and the direction the crate moves is 12°.
Your physics TA has a far point of 0.711 m from her eyes and is able to see distant objects in focus when wearing glasses with a refractive power of ?1.47 D. Determine the distance between her glasses and eyes
Two freight cars, each with a mass of 2.9 x 10^5 kg, collide and stick together. One was initially moving at 2.80 m/s and the other was at rest. What is the final speed.
What is this force in Newtons.
The change in specific enthalpy during the melting of ice at 0 degrees C and 1.01 X 10^5 Pa is ?h= 333.39 kj/kg. find the change in entropy of reservoir and universe
A swimmer runs horizontally off a diving board with a speed of 3.58 m/s and hits the water a horizontal distance of 1.79 m from the end of the board. How high above the water was diving board.
A fish at a depth of 30 m is neutrally buoyant, What fraction of the original number of air molecules that were in the air bladder remains when the fish is at the surface
If it started falling from an upright position, what was the initial angular acceleration of the structure? suppose that the bottom did not slide across the floor and that it did not fall out of plane; that is, during the fall, the structure remained..
A 1040 kg car carrying four 80 kg people travels over a rough "washboard" dirt road with corrugations 2.0 m apart that causes the car to bounce on its spring suspension. The car bounces with maximum amplitude as its speed is 21 km/h. The car now stop..
Four identical charges (+3.0µ C each) are brought from infinity and fixed to a straight line. Determine the electric potential energy of this group
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