Physics

Physics, 15.11.2019 02:31, jamarstand

Amountain-climber friend with a mass of 74 kg ponders the idea of attaching a helium-filled balloon to himself to effectively reduce his weight by 25% when he climbs. he wonders what the approximate size of such a balloon would be. hearing of your physics skills, he asks you. share with him your calculations that find the volume of the balloon.

answer

Answers: 3

Show answers

Similar questions

Предмет

Physics, 22.06.2019 00:30, powberier6979

Consider an ordinary, helium-filled party balloon with a volume of 2.2 ft3. the lifting force on the balloon due to the outside air is the net resultant of the pressure distribution exerted on the exterior surface of the balloon. using this fact, we can derive archimedes’ principle, namely that the upward force on the balloon is equal to the weight of the air displaced by the balloon. assuming that the balloon is at sea level, where the air density is 0.002377 slug/ft3, calculate the maximum weight that can be lifted by the balloon. note: the molecular weight of air is 28.8 and that of helium is 4.

Answers: 2

Предмет

Physics, 01.10.2019 21:00, mykiagray

Helium in the balloon is initially at 15°c and 550 kpa and cv = 3.12 kj/(kg-k) for helium. the balloon can be considered to be a rigid sphere with a radius of 25 m. (a) determine the mass of helium in the balloon, in kg. (b) as the balloon rises, the helium is heated by solar radiation to 300°c. the balloon will burst if the pressure in the balloon is greater than 1.1 mpa. will the balloon burst? why or why not? (c) what is the heat transfer to the balloon due to solar heating, in mj? (d) the air balloon company wants to reduce mass of the ball

Answers: 3

Предмет

Physics, 17.10.2019 23:20, sccovell5601

Balloons are sometimes filled with helium gas because it has a mass only about one-seventh that of air under identical conditions. the buoyancy force, which may be expressed as fb = g vballoon, will push the balloon upward. if the balloon has a diameter of 10 m and carries two people having a mass of 70 kg each and the mass of the gondola is 64 kg, determine the acceleration of the balloon when it is first released. assume that the density of the air is = 1.16 kg/m3 , and neglect the weight of the ropes and balloon envelope fab

Answers: 1

Предмет

Physics, 09.11.2019 06:31, jerzie53

Alarge helium filled balloon is used as the center piece for a graduation party. the balloon alone has a mass of 222 kg and it is filled with helium gas until its volume is 328 m3. assume the density of air is 1.20 kg/m3 and the density of helium is 0.179 kg/m3. calculate the buoyant force acting on the balloon.

Answers: 1

Do you know the correct answer?

Amountain-climber friend with a mass of 74 kg ponders the idea of attaching a helium-filled balloon...

Questions in other subjects:

Konu

Business, 21.05.2020 19:07

Who is the king of pop?...

Konu

History, 21.05.2020 19:07

How did Bismark use war and realpolitik to increase nationalism and create a nation in Germany?...

Konu

Spanish, 21.05.2020 19:07

What does Summer knock over in the museum? a painting a vase a lion a sculpture...

Konu

Mathematics, 21.05.2020 19:07

What is the area of this circle?...

Konu

Mathematics, 21.05.2020 19:07

Two similar triangular pastures meet at avertex, The dimensions are glven in yards,How much fencing would be needed toenclose the larger pasture?117

Konu

Mathematics, 21.05.2020 19:07

Use substitution to solve each system of equations: x=y+6 x+y=10...

Konu

History, 21.05.2020 19:07

For example, in 1978, Maya Angelou published the poem “Still I Rise” about the experience of being a black woman in America. One of the messages of the poem is that, despite verbal...

Konu

Mathematics, 21.05.2020 19:07

Write the standard and expanded form that represents the same value as "forty-two and nine hundred five thousandths."...

Konu

Mathematics, 21.05.2020 19:07

A triangle has three angles of 36°, 34°, and 110°. Classify the triangle....

Konu

Mathematics, 21.05.2020 19:07

Need help ASAP thanks...

Other tasks in the category: Physics More task