Physics, 11.12.2019 22:31, AutumnGarringer
On october 21, 2001, ian ashpole of the united kingdom achieved a record altitude of 3.35 km (11 000 ft) powered by 600 toy balloons filled with helium. each filled balloon had a radius of about 0.50 m and an estimated mass of 0.30 kg. (a) estimate the total buoyant force on the 600 balloons. (b) estimate the net upward force on all 600 balloons. (c) ashpole parachuted to the earth after the balloons began to burst at the high altitude and the buoyant force decreased. why did the balloons burst?
Answers: 3
= Density of air = 1.2 kg/mÂł
Other questions on the subject: Physics
Physics, 22.06.2019 10:30, gyexisromero10
Air is to be preheated by hot exhaust gases in a cross-flow heat exchanger before it enters the furnace. air enters the heat exchanger at 95 kpa and 20°c at a rate of 0.6 m^3/s. the combustion gases (cp = 1.10 kj/kg°c) enter at 160°c at a rate of 0.95 kg/s and leave at 95°c. determine the rate of heat transfer to the air and its outlet temperature.
Answers: 2
Physics, 22.06.2019 12:50, shollydot1379
Assume you measured the mass of the cart to be (500 ± 1) g and the mass of the additional mass you put on the cart to be (500 ± 1) g as well. since the scale you are using in the lab cannot measure objects heavier than 600g you will have to sum up individual pieces and propagate the error. so what would be the mass and the standard error of the cart and the mass
Answers: 3
Physics, 22.06.2019 14:30, darceline1574
Alandscaper is shopping for landscaping materials. she wants to use materials through which water flows easily. which materials should she choose? check all that apply. clay gravel granite rocks with cracks loosely packed soil
Answers: 2
Do you know the correct answer?
On october 21, 2001, ian ashpole of the united kingdom achieved a record altitude of 3.35 km (11 000...
Questions in other subjects:
English, 20.10.2021 20:50
Biology, 20.10.2021 20:50
