Compute how large a volume of hydrogen is required

Assignment Help Physics
Reference no: EM13267562

A plastic bag is filled with hydrogen at atmospheric pressure and 20.0 oC. Assume that the mass of the bag is negligible and take the temperature of the outside air to be 0oC. With the help of this "balloon" we want to lift a 50.0 kg girl off her feet.

a) How large a volume of hydrogen (in m3) is required?

b) If hot air is used instead of hydrogen, what is the required volume of the balloon if the air inside can be maintained at 41.0 oC ?

Reference no: EM13267562

Questions Cloud

Explain what volume of concentrated acetic acid is needed : Using concentrated acetic acid and solid sodium acetate, how would you prepare 10 l of 0.1 M acetate buffer at pH 4.75? The pKa for acetic acid is 4.75. What Volume of concentrated acetic acid is needed (mL)?
What is the speed of the water as it comes out of the pipe : Water flows out of a large open reservoir through a small pipe that opens to the atmosphere 30 m below the level of the water in the reservoir.
Find the voltage across the inductor when a switch supplying : Using the expression relating the rate at which current changes in an inductor to the voltage produced at it, find the voltage across the inductor when a switch supplying 7.9 A to a 2.4 mH inductor is suddenly opened.
What is the expected return on the market : The stock of Big Joe's has a beta of 1.66 and an expected return of 13.40 percent. The risk-free rate of return is 5.9 percent. What is the expected return on the market?
Compute how large a volume of hydrogen is required : A plastic bag is filled with hydrogen at atmospheric pressure and 20.0 oC. Assume that the mass of the bag is negligible, How large a volume of hydrogen (in m3) is required
What is your total dollar return on this investment : Six months ago, you purchased 1,900 shares of ABC stock for $25.24 a share. You have received dividend payments equal to $0.40 a share. Today, you sold all of your shares for $27.52 a share. What is your total dollar return on this investment?
Depict the skeletal structure of 1-isopropyl : Draw the skeletal structure of 1-isopropyl-3-methylcycloheptane. Please explain, I am having trouble grasping this concept.
Find resistance and inductance per unit length for the line : A distortionless transmission line operating at 125 MHz has characteristic impedance = 40-ohm, attenuation constant = 0.02 Np/m and phase constant = 0.75 rad/m. Find the resistance and inductance per unit length for the line.
Explain what are the mass and moles of hno3 actually used : If a procedure calls for 2.0mL of concentrated nitric acid, what are the mass and moles of HNO3 actually used in the reaction

Reviews

Write a Review

Physics Questions & Answers

  The magnetic field strength inside the gas cloud

Radio astronomers detect electromagnetic radiation at 46.0MHz from an interstellar gas cloud. What is the magnetic field strength inside the gas cloud

  Find out the mechanical energy of the system

A 120-g mug at 21C is filled with 210g of coffee at 91C. suppose all of the heat lost by the coffee is transferred to the mug, what is the final temperature of the coffee? The specific heat capacity of the mug is 7.8 X 10^2 J/(Kg C)

  What effect would change have on an initial horizontal sped

A golfer drives a 0.046kg golf ball from an elevated tee, giving the ball an initial horizontal velocity of 45 m/s. (a) what is the magnitude of the average force exerted by the club on the ball if the contact time for the golf club on the ball du..

  Find the magnification of the lens

An object is placed 64.5 cm from a screen. Find the magnification of the lens

  Find the equivalent capacitance of the network

A pulsed carbon dioxide laser has an energy output of 1.00 J. This energy is released in the form of a 10^9 W pulse of infrared radiation lasting 10^-9 s, Find the equivalent capacitance of the network

  Illustrate what are the effects on net income

At the end of three months, the spot rate is $1.37 per euro, and Quality delivers the merchandise, collecting 400,000 Euros. Illustrate what are the effects on net income from these transactions?

  The velocity of the third piece

An object at rest explodes into three pieces of equal masses. One moves east at 23 m/s, while the second piece moves northwest at 14 m/s. Estimate the velocity of the third piece? Suppose each piece has a mass of 2 kg.

  What is the direction of the electric field

Two large equipotent surfaces are flat and parallel and separated by a relatively small distance compared to their size. One surface is at 25 V and the other is at 33 V. The surfaces are 1.25 cm apart. What is the direction of the electric field m..

  Explain when does the shoe reach the ground

A parachutist descending at a speed of 10.0 m/s loses a shoe at an altitude of 30.0 m. (Assume the positive direction is upward.). Explain when does the shoe reach the ground? What is the velocity of the shoe just before it hits the ground?

  How far has the football traveled horizontally

A football is thrown with an initial upward velocity component of 15.0 and a horizontal velocity component of 17.5 . How high does it get above the ground? How far has the football traveled horizontally from its original position?

  What is the normal force of the seat on the passengers butt

A baseball (m = 148 g) approaches a bat horizontally at a speed of 41.5 m/s (93 mi/h) and is hit straight back at a speed of 45.9 m/s (103 mi/h).

  Calculate the de broglie wavelength

Light from a He-Ne laser (= 632.8) strikes a pair of slits at normal incidence, forming a double-slit interference pattern on a screen located 1.10 from the slits. The figure shows the interference pattern observed on the screen.

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