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A 65.0 kg skier with an initial speed of 12.0 m/s coasts up a 2.50 m high rise as shown in Figure 6.23. Find his final speed at the top, given that the coefficient of friction between her skis and the snow is 0.0800. (Hint: Find the distance traveled up the incline assuming a straight-line path as shown in the figure.)
A piece of iron is heated with a torch to a temperature of 673 K. How much more energy does it emit as blackbody radiation at 673 K than it does at room temperature, 293 K?
An unknown liquid fills a square container of sides 10 meter. Find what is the density of a material if the pressure 5 meter below the surface is 1.3 atm
A carnot's engine has the same efficiency between 1000K and 500K and between x K and 1000K (this being the temperature of this skins in this case). Calculate x ?
A sealed container contains 7 moles of neon gas at STP. Estimate the number of neon atoms having speeds in the range from 188.0 m/s and 192.0 m/s
An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 1.40 mm. If a 23.0 V potential difference is applied to these plates, calculate the electric field between the plates
A uniform 1.4 kilogram rod that is 0.75 meter long is suspended at rest from the ceiling by two springs, one at each end of the rod. Estimate the angle that the rod makes with the horizontal
Starting from rest, a disk rotates about its central axis with constant angular acceleration. In 5.0 s, it rotates 45 rad. What was the angular acceleration during this time
A barefoot field-goal kicker imparts a speed of 21 m/s to a football initially at rest. find the force exerted by the ball on the kicker foot
You have a sample of Xenon in a rectangular container. The gas exerts a total force of 58.1 N perpendicuar to one of the container walls, Calculate the pressure of your sample
Illustrate what is its average acceleration during a stop from that velocity? Express your answer in m/s2. Consider the car's initial velocity to be a positive quantity.
A certain object has a mass in air of 0.422 kg and a mass whensubmerged in benzene (Dbenzene = 0.90 X 103 kg/m3) of 0.367 kg. Determine the density of the object and the density ofthe unknown liquid
Compute the force that acts on a square access hatch at the bottom of the tank that measures 0.25m by 0.25m.
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