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Physics, 23.10.2019 17:30 Lauraemia43
Aquarterback claims that he can throw the football a horizontal distance of 167 m. furthermore, he claims that he can do this by launching the ball at the relatively low angle of 33.1 ° above the horizontal. to evaluate this claim, determine the speed with which this quarterback must throw the ball. assume that the ball is launched and caught at the same vertical level and that air resistance can be ignored. for comparison a baseball pitcher who can accurately throw a fastball at 45 m/s (100 mph) would be considered exceptional.
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Physics, 22.06.2019 21:40, iancuteodora30
Ahair dryer is basically a duct in which a few layers of electric resistors are placed. a small fan pulls the air in and forces it through the resistors where it is heated. air enters a 1200 w hair dryer at 100 kpa and 22°c and leaves at 47°c. the cross-sectional area of the hair dryer at the exit is 60 cm2. neglecting the power consumed by the fan and the heat losses through the walls of the hair dryer, determine (a) the volume flow rate of air at the inlet and (b) the velocity of the air at the exit.
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Physics, 23.06.2019 03:30, hannahchristine457
Use the ratio form of kepler’s third law, = , and the data provided to determine the time it takes mars to orbit the sun. round your answer to the nearest tenth. earth’s orbital period = 1.0 earth year earth’s distance from the sun = 1.0 au mars’s distance from the sun = 1.5 au it takes mars about ⇒ 1.8 earth years to orbit the sun.
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Aquarterback claims that he can throw the football a horizontal distance of 167 m. furthermore, he c...
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