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
Greeley [361]
3 years ago
15

A hot-air balloon has a volume of 440 × 10^3 ^3. Calculate the buoyant force that the surrounding cold air exerts on the balloon

? Given that the density of the surrounding air is 2.58 kg/^3.
Physics
1 answer:
siniylev [52]3 years ago
3 0

Answer:

Explanation:

Given that,

The volume of the balloon is

V = 440 × 10³ m³

Buoyant force F?

Given the density of the surrounding to be 2.58 kg/m³

ρ = 2.58 kg/m³

The buoyant force is the weight of water displaced and it is calculated using

F_b = ρVg

Where

F_b is buoyant force

ρ is density

V is the volume of the liquid displace.

g is the acceleration due to gravity

Then,

F_b = ρVg

F_b = 2.58 × 440 × 10³ × 9.81

F_b = 1.1 × 10^7 N

You might be interested in
Freeeeeee pointssssss
Alenkinab [10]

Answer:

Thanks for the points

Explanation:

Points

7 0
2 years ago
What are 2 way X-rays and radio waves are different
Kaylis [27]
There are two main points that should be emphasized about the different types of electromagnetic radiation. The sequence from longest wavelength (radio waves) to shortest wavelength (gamma rays) is also a sequence in energy from lowest energy to highest energy

hope this helps you!✌
3 0
2 years ago
Read 2 more answers
Does heavy force work under conditions of weightlessness in such an artificial earth satellite?
Afina-wow [57]

Answer: That is to say, a satellite is an object upon which the only force is gravity. Once launched into orbit, the only force governing the motion of a satellite is the force of gravity. Newton was the first to theorize that a projectile launched with sufficient speed would actually orbit the earth.

Explanation: Because Earth-orbiting objects follow elliptical paths around Earth and not a straight line, forces cannot, by definition, be balanced. Force is directional. It is a push or a pull in a particular direction.

3 0
2 years ago
The gravitational force of a star on an orbiting planet 1 is f1. planet 2, which is four times as massive as planet 1 and orbits
Keith_Richards [23]
<span>Answer: F=GMm/r^2 where G is the newtonian grav cst, M the mass of the star, m the mass of the planet, and r the planet-star distance F1=GMm1/r1^2 F2=GMm2/r^2 F2/F1 = [GMm2/r2^2]/[GMm1/r1^2] F2/F1=(m2/m1)(r1/r2)^2 = (2)(1/2)^2 = 1/2 because m2/m1=2 and r2/r1=2</span>
8 0
3 years ago
An object at free fall near the Earth’s surface experiences constant velocity.
mariarad [96]
False it accelerates.
7 0
3 years ago
Other questions:
  • Is it possible that a speed of 254 and a speed of 100 could be the same speed?
    15·1 answer
  • You drive in a straight line at 20.0 m/s for 12.0 miles, then at 30.0 m/s for another 12.0 miles. (a) Is the car's average speed
    5·1 answer
  • Are oil and water optically different
    9·2 answers
  • g The speed of light in a vacuum is larger for short wavelength electromagnetic waves. larger for high frequency electromagnetic
    6·1 answer
  • What is the least possible initial kinetic energy kmin the oxygen atom could have and still excite the cesium atom?
    9·1 answer
  • the resistivity of a given wire of cross session area 0.7mm² is 49×10⁴.calcuate the resistance of a 2m lenght of wire​
    14·1 answer
  • In which direction does gravitational force act
    13·1 answer
  • Recall: earth applies _____________ on Earth or equivalently
    11·1 answer
  • What name is given to the force on an object caused by Earth's gravitational pull?​
    11·1 answer
  • If the wavelength of light in the visible region is known, what is also known? check all that apply. question 4 options:
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!