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You buy a plastic dart gun, and being a clever physics student youdecide to do a quick calculation to find its maximum horizontalrange. You shoot the gun straight up, and it takes 4.9 s for the dart to land back at the barrel. What is the maximum horizontal range of your gun?
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In a quarter-mile drag race, two cars start simultaneously from rest, and each accelerates at a constant rate until it either reaches its maximum speed or crosses the finish line. By how many seconds does this car win the race
Two nonconservative forces are present: friction does -2.00 104 J of work on the car, and a chain mechanism does +3.00 104 J of work to help the car up a long climb. Illustrate what is the change in the car's kinetic energy, ΔKE = KEf - KE0, fro..
In a belly-flop diving contest, the winter is the driver whomakes the biggest splash upon hitting the water. The size of thesplash depends not only on the drivers style, but also on theamount of kinetic energy that the driver has.
The unit of horsepower was defined by considering the power output of a typical horse. What power does this represent in hp
If a metric ton is 1.000 x10^e3 kg, how many 74 kg people can safely occupy an elevator that can hold a maximum mass of accurately 1 metric ton.
if a hydroelectric facility is to produce 100 000 hp with an elevation difference of 300 ft, what is a suitable speed (in rpm) if a kaplan turbine, operating at high efficiency, is used
a small aircraft is headed due south with a speed of 57.8 m/s with respect to still air. Determine the directional angle is relative to due south
a solid ball has a rotational inertia of 0.0314 kgm2. it is rotated by applying a 4.7 N force tangentiallyto it. the radius is 14 cm. what is the angular acceleration of the ball
A weight lifter raises a 1109 N weight a vertical distance of 1.60 m in a time interval of 1.75 s. Compute the power provided by the weight lifter's force
Julie drives 100 mi to Grandmother's house. On the way to Grandmother's, Julie drives half the distance at 44.0, What is her average speed on the return trip
Light of wavelength 650 nm falls on a 0.48 mm wide slit and forms a diffraction pattern on a screen 1.8 m away.
A stone used to grind wheat into flour is turned through 12 revolutions by a constant force of 21.6 N applied to the rim of a 9.2-cm-radius shaft connected to the wheel
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