1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ddd [48]
3 years ago
14

A spherical balloon holding 35 lbm of air on earth has a diameter of 10 ft. Determine (a) the specific volume, in unit ft3/lbm,

and (b) the weight, in lbf, of the air within the balloon.
Mathematics
1 answer:
andrew-mc [135]3 years ago
5 0

Answer:

a) Specific volume of the air in balloon is 14.96 ft^3/lbm

b)The weight of the air within the balloon is 1,126.09 lbf.

Step-by-step explanation:

Mass of air, m = 35  lbm

Volume of the air = V

Diameter of balloon = d = 10 ft

radius of the balloon = r= 0.5 d = 5 ft

Volume of balloon = V

V=\frac{4}{3}\pr r^3

V=\frac{4}{3}\times 3.14\times (5 ft)^3

Specific volume of the air in balloon = S

S=\frac{V}{m}=\frac{\frac{4}{3}\times 3.14\times (5 ft)^3}{35 lbm}

S=14.96 ft^3/lbm

Specific volume of the air in balloon is 14.96 ft^3/lbm

lbf=32.174 lbm ft/s^2

Weight of the air = W

Acceleration due to gravity = 32.174 lbm ft/s^2

Weight = m\times g[/tex]

W=35 lbm\times 32.174 lbm ft/s^2

W=1,126.09 lbf

The weight of the air within the balloon is 1,126.09 lbf.

You might be interested in
The sum of twice a number and 4 is equal to the sum of the number and 8
zalisa [80]

Answer:

4

Step-by-step explanation:

Variable: X = Unknown Number

2x + 4 = x + 8

2x - x = 8 - 4

x = 4

Check:

2(4) + 4 = 4 + 8

8 + 4 = 12

12 = 12

3 0
3 years ago
The decimal equivalent of is 3/4 is...
tatuchka [14]

Answer:

0.75

Step-by-step explanation:

since it's a fraction you can divide

3 divided by 4 is 0.75

4 0
2 years ago
HELPPPPPPPPPPPPPPPPPPP PLEASEEEE
Softa [21]
So half of Nina's age is 10/2= 5. And since Greg is three years younger we subtract from 5 like so...
10/2=5
5-3
2
So Greg is 2 years old. I hope this helps love! :)

5 0
3 years ago
Read 2 more answers
The opposite of -4 is?
Oliga [24]
I think it's 1/4 because -4/1
6 0
3 years ago
Please Help Me With This.
Romashka-Z-Leto [24]

Answer:

A is $0.45 B is 2 ounces

Step-by-step explanation:

A when you divide the cost by the ounces or $5.40 by 12 ounces you get $0.45 per ounce.

B $0.45 times 2 equals 90 cents and you cannot go over 1 dollar.

C you should be to do along with D with this information.

5 0
3 years ago
Other questions:
  • I NEED ANSWER ASAP!!! PLEASE HELP!!! A shot put is thrown upward with a velocity of 35 ft./sec. at a height of 4 ft. and an angl
    14·1 answer
  • Elias and Niko are polishing the silver at the heritage museum. Elias could polish all the silver himself in 40 minutes. That ta
    13·2 answers
  • Expressions equivalent to 2(x+3)
    14·1 answer
  • the amount of radioactive isotope decays in half every year. the amount of isotope can be modeled f(x)=346(1/2)^x and f(1)=173.
    14·2 answers
  • Ill give brainlest if correct
    7·2 answers
  • 45/27=x/3 solve for x pls help
    13·2 answers
  • I need help please!!
    11·1 answer
  • Let y = f(x) be a cubic polynomial with leading coefficient a = 2 and f(-2) = f(1) = f(2) = 0. find the factored form of f.
    12·1 answer
  • How would you solve for x and y and what are x and y? Not sure what to do.
    8·1 answer
  • Help pls don not under stand
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!