Physics, 30.05.2021 21:30 aliyyahlove
An object is propelled straight up from ground level with an initial velocity of 48 feet per second. Its height at time t is modeled by , where the height, s(t), is measured in feet and the time, t, is measured in seconds. a. What is the maximum height of the object and when does it occur? b. When does the object hit the ground? c. During what time interval is the height over 32 feet? Please show your work (i. e. don’t just depend on your graphing calculator!!)
Answers: 3
Physics, 21.06.2019 15:30
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Physics, 22.06.2019 03:50
A30 kg weight lies on top of a massless piston of area a = 0.01 m2 the exterior air is at a (constant) p =1 atm and t = 27 c. the interior gas is 0.4 moles of (ideal) n2 and it has initial temperature 27.00 degrees c. 1. what is the initial pressure in the interior? a. 29.4 kpa b. 130.7 kpa c. 101.3 kpa the next three questions concern what happens when an amount of heat q is slowly added to the interior, raising the piston by 1 mm and raising the interior temperature to 27.40 c
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Physics, 22.06.2019 19:30
Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.6 m below the tank bottom which is a = 6.7 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute). report your answer in meters to two decimal places.
Answers: 1
An object is propelled straight up from ground level with an initial velocity of 48 feet per second....
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