How many balloons would it take

Assignment Help Civil Engineering
Reference no: EM13210358

To float a 160 pound man using helium balloons (assume 0.52 cubic feet per inflated balloon). How many balloons would it take? Assume density of air is 1.29 kg/cubic meter and the density of helium is 0.179 kg/cubic meter.

Reference no: EM13210358

Questions Cloud

State out a balanced nuclear reaction : A little trouble understanding what to do in this question: It has been reported that the reaction of Ca-40 with W-186 produces Mg-40. If only one other nuclide is formed by this reaction, write out a balanced nuclear reaction
Investigate the possibility of environmental problems : Investigate the possibility of environmental problems that faced by the area of disaster.
How do people choose which rides to go on : This is a very random question in my opinion. In many amusement parks, you pay an admission fee to the park but you do not need to pay for individual rides. How do people choose which rides to go on
What is the design speed of he curve : An equal-tangent crest vertical curve is designed with a PVI at station 110+00 and a PVC at station 107+43.3. if the high point is station 110+75.5 what is the design speed of he curve?
How many balloons would it take : To float a 160 pound man using helium balloons (assume 0.52 cubic feet per inflated balloon). How many balloons would it take? Assume density of air is 1.29 kg/cubic meter and the density of helium is 0.179 kg/cubic meter.
What are the long-run implications of fdi : the Cobb-Douglas production function given in equation 4-1 applies to a developing country. Instead of thinking of immigration from a developing to a developed country, suppose a developed country invests large amounts of capital (foreign direct i..
Explain what is the chief product of dehydration : cannot be dehydrated to an alkene without rearrangement. What is the chief product of dehydration?
Explain diphenylethyne can be prepared from meso : Diphenylethyne can be prepared from meso-1,2-dibromo-1,2-diphenylethane, by double E2 elimination via the corresponding alkene. a) Which alkene is initially formed?
Compute the seepage velocity : Compute the seepage velocity and estimate the hydraulic gradient in the aquifer if the porosity of the soil is 42%.

Reviews

Write a Review

Civil Engineering Questions & Answers

  Explain transportation network

Transportation network, A power generator at a dam can send 300 megawatts to substation 1, can send 200 megawatts to substation 2, and can send 250 megawatts to substation 2

  Determine the total shortening of the pile

a) Determine the total shortening of the pile in terms of F, L, A, and E; b) If F=96 kips, L=40 ft., A=100in2, and E=1.5 x 106 psi, how much does such a pile shorten?

  Determine which motor should be installed based on the pw

At the end of 15 years, the first motor will have a salvage value of $50 and the second motor will have a salvage value of $100. consider the MARR to be 8%. (note : 1HP=0.7457 kw). Determine which motor should be installed based on the PW criterio..

  Engineering societies based on the research

What are Engineering Societies based upon the research? List at least 10 discipline specific engineering societies along with their website addresses.

  Determining a maximum safe speed

The central angle is 35 degrees, the superelevation is 0.08, and 20.6 ft is cleared (for sight distance) from the inside edge of the innermost lane. Determine a maximum safe speed (assuming current design standards) to the nearest 5 mi/h.

  Define what are the quantitative measures of reliability

What are the quantitative measures of reliability (discuss measures for hardware, software, personnel, facilities, and data)?

  Ultimate bod of municipal wastewater-reaction rate constant

If bod5 and ultimate bod of a municipal wastewater are 200mg/l and 457 mg/l respectively what is the reaction rate constant? a) .265 b) .050 c) .115 d) .165

  Compare the physical migration of workers

Compare the physical migration of workers during U.S. industrialization and present-day intellectual transition into a new type of workforce.

  What are the surface overflow rate

a rectangular clarifier with a length:width ratio of 3:1 receives a flow of 850m3/day. the clarifiers depth is 4.0m and the detention time of the water inthe clarifier is 2.4 hrs, what are the surface overflow rate and the horizontal flow through ..

  Calculating the force in a punch press

Calculate the force (in Kn) a punch press must exert if it is to punch out a large washer from a strip of 5-mm thick sheet steel with an ultimate shear strength of 400 MPa.

  Pressure on the soil if theta is given

A pipe is to be installed under the ground on a bed of aggregate 6 in. thick. The entire weight on the aggregate from pipe and soil above the pipe is 1800 lbs. per linear foot of pipe. What is the pressure on the soil if theta is 45 degrees? Assum..

  Thermal conductivities of aluminum and copper

The aluminum end and the copper end are maintained at temperatures of 50°C and 260°C, respectively. The thermal conductivities of aluminum and copper are 205 and 385 W/m · K, respectively. The temperature of the aluminum-copper junction in the rod..

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd