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
If you traveled one mile at a speed of 100 miles per hour and another mile at a speed if 1 mile per hour, your average speed wou
Semenov [28]

Answer:

v = 1.98 mph

Explanation:

Given that,

Speed to travel one mile is 100 mph

Speed to travel another mile is 1 mph

The formula used to find your average speed is given by :

v=\dfrac{2v_1v_2}{v_1+v_2}

Putting the values, we get :

v=\dfrac{2\times 100\times 1}{100+1}

v = 1.98 mph

So, yours average speed is 1.98 mph.

7 0
3 years ago
Temperature is a measure of _ of the particles in an object
djverab [1.8K]

energy is the correct answer to fill the blank bb :)

3 0
2 years ago
What is the definition of a volt in science?
OverLord2011 [107]
<span> One </span>volt<span> is </span>defined<span> as the difference in electric potential between two points of a conducting wire when an electric current of one ampere dissipates one watt of power between those points.</span>
4 0
3 years ago
What is the velocity of a car that travels 1,069 meters in 54 seconds?
irga5000 [103]

Answer:

20.41m/s. hdjdgshd

Explanation:

ok

8 0
2 years ago
Read 2 more answers
A small piece of Styrofoam packing material is dropped from a height of 2.60 m above the ground. Until it reaches terminal speed
Vadim26 [7]

Answer:

Explanation:

a ) After the attainment of terminal speed , object takes 4.5 s to cover a distance of 2 m

So terminal speed V = 2 / 4.5

= .444 m /s

When it attains terminal speed , acceleration becomes zero

0 = g - B x .444

B = 22.25 s⁻¹

b ) At t = 0 , v = 0

a = g - B v

a = g at t = 0

c ) When v = .15

a = g - 22.25 x .15

= 9.8 - 3.31

= 6.5  m /s²

7 0
3 years ago
Other questions:
  • Why is it useful to calculate average speed?
    6·1 answer
  • A girl sits on a tire swing and is pushed in a circular motion by her father. Her tangential speed is 2.8 m/s and the girl trave
    15·2 answers
  • Which properties of plastics allow them to be solutions to many complex problems in the world? Check all that apply. A.chemicall
    8·2 answers
  • An object that is 2 cm tall is 18 cm in front of a converging lens and creates a real image 8 cm beyond the lens. What is the fo
    10·1 answer
  • Algorithm to determine number of shortest paths between two nodes
    15·1 answer
  • Which of the following is a common physical property of ionic compounds? A. high melting point B. insoluble in water C. conduct
    7·2 answers
  • What help in reversing direction of current of current​
    14·1 answer
  • What kind of model is shown below?
    15·1 answer
  • A student using a tuning fork of frequency 512 Hz observes that the speed of sound is 340.0 m/s. What is the wavelength of this
    6·1 answer
  • If 2 ma of current flow in your mp3 player, how long will it take for 1 c of charge to flow?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!