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A ball is launched straight up with a speed of 28.85 miles per hour. What is the maximum height reached in meters?
a football spends a total of 5 seconds in the air.it reaches a peak height of 20 meters. how long does it takes to reach its peak height
A 5570kg open train car is rolling on frictionless rails at 23.6m/s when it starts pouring rain. What mass of water has collected in the car
At the lowest point in a vertical dive (radius = .69 km), Determine the magnitude of the acceleration of the pilot
Insects do not have lungs as we do, nor do they breathe through their mouths. Instead, they have a system of tiny tubes, called tracheae, through which oxygen diffuses into their bodies. find the oxygen concentration at the interior end of the tube
A bottle of saline solution (with a specific gravity of 1.02) is attached to a 1.2 m long piece of tubing with a 1.0 cm inner diameter. If the tubing is held vertically, filled with saline, and clamped at the bottom, (a) what is the gauge pressure at..
A closed ended manometer is used to measure the pressure in a tank of gas. The working fluid for the manometer has a specific gravity of 1.47. what is the gauge pressure (in Pa) in the tank
The loaded cab of an elevator has a mass of 3.6 x 10^3 kg and moves 193m up the shaft in 20s at constant speed. At what average rate does the force from the cable do work on the cab.
A person with perfect pitch sits on a bus bench listening to the 441-Hz horn of an approaching car. If the person detects a frequency of 479 -Hz, how fast is the car moving.
What is the surface temperature of Betelgeuse, a red giant star in the constellation of Orion, which radiates with a peak wavelength of about 970 nm?
Dan is gliding on his skateboard at 2.00m/s . He suddenly jumps backward off the skateboard, How fast is Dan going as his feet hit the ground
A standing wave on a 1.70 m long horizontal string displays three loops when the string vibrates at 125 Hz. What is the function describing the standing wave
A model airplane with mass of 0.754 kg is tethered by a wire so that it flies in a circle 29.5m in radius. The airplane engine provides a net thrust of 0.796 N perpendicular to tethering wire.
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