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- A raft is made of 11 logs lashed together. Each is 45 cm in diameter and has a length of 6.1 m. Part A How many people can the raft hold before they start getting their feet wet, assuming the average person has a mass of 65 kg ? Do not neglect the weight of the logs. Assume the specific gravity of wood is 0.60. Express your answer using two significant figures. N = ΑΣΦA 6.5-cm-diameter ball has a terminal speed of 10 m/s. You may want to review (Pages 146 - 147) . Part A What is the ball's mass? Use p = 1.2 kg/m³ for the density of air at room temperature. Express your answer with the appropriate units. µA ? Value Units m = Submit Request AnswerYou have entered a model rocket contest with your friend, Tiffany. You have been working on a pressurized rocket filled with nitrous oxide. Tiffany has determined the minimum atmospheric pressure at which the rocket fuel is stable. Based not hat value, and the equations given below, your task is to determine the optimum launch angle and initial velocity to maximize flight time. The goal is to re-use your rocket capsule, so you really want to avoid a fuel explosion. The atmospheric pressure varies with elevation according to the equation: P(h)= 14.7e−h/10. where p is the pressure in psi and h, is an elevation in miles above sea levels. The height (in feet) of a rocket launched at an angle α degrees with the horizontal and an initial velocity, vo in feet/second, t seconds after launch is given by the equation h(t)=-16t^2+vo*t*sin(α). 1) If Tiffany has determined that the minimum safe pressure is 11 pounds per square inch, at what altitude will the rocket explode? Report your result…
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- A PROBLEMS 6.63, 6.64 6.64 This "double" nozzle discharges water (at 10°C) into the atmosphere at a rate of 0.50 m /s. If the nozzle is lying in a horizontal plane, what x-component of force acting through the flange bolts is required to hold the nozzle in place? Note: As- sume irrotational flow, and assume the water speed in each jet to be the same. Jet A is 10 cm in diameter, jet B is 12 cm in diame- ter, and the pipe is 30 cm in diameter.Pressure cookers have been around for more than 300 years, although their use has strongly declined in recent years (early models had a nasty habit of exploding). How much force (in N) must the latches holding the lid onto a pressure cooker be able to withstand if the circular lid is 23.0 cm in diameter and the gauge pressure inside is 3.50 atm? Neglect the weight of the lid. NHomework 1 Problem 6: Pressure cookers use water at very high pressures to cook food very quickly. They have been around for more than 300 years, although their use has strongly declined in recent years (early models had a nasty habit of exploding). a) How much force, in newtons, must the latches holding the lid onto a pressure cooker be able to withstand if the circular lid is 25.5 cm in diameter and the gauge pressure inside is 1.05 atm? Neglect the weight of the lid. F = ______
- X Exit full screen Press Esc to exit full screen What is The resulant Force exerted on the slave piston of 25 squate meters? ! 20 New tons Applied on Masfer piston of 25 square Centimeters Hy draulics - drawing Give an exect answer is Nor to scale. and include units.Pressure cookers use water at very high pressures to cook food very quickly. They have been around for more than 300 years, although their use has strongly declined in recent years (early models had a nasty habit of exploding). a. How much force, in newtons, must the latches holding the lid onto a pressure cooker be able to withstand if the circular lid is 27.5 cm in diameter and the gauge pressure inside is 0.95 atm? Neglect the weight of the lid.1