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
Aleonysh [2.5K]
3 years ago
9

Helium balloons stay the same size as you hold them, but swell and burst as they rise to high altitudes when you let them go. Wh

at are the forces on the inside of the balloon? What are the forces on the outside of the balloon?
Chemistry
1 answer:
Roman55 [17]3 years ago
7 0

Answer:

Inside balloon outward normal force.

Outside balloon compressing atmospheric force.

Explanation:

At ground level gases outside and helium inside are in static equilibrium with balloon as separating surface. Both balloon and atmospheric forces are compressing to maintain that state.

But as balloon moves upward because of less density of helium gas in balloon internal force of helium gas increases. At high altitude atmospheric pressure decreases due to gravitational pull and fluid nature of gas. So equilibrium reestablish and it start to expand at high altitude.

You might be interested in
Can matter undergo chemical reactions but still keep the same physical properties?
Nastasia [14]
Yes it can!!!!!!!!!!
6 0
3 years ago
What is the work done in lifting 60 kg of blocks to a height of 20 m
balandron [24]

Answer:

<h2>1200 J</h2>

Explanation:

The work done by an object can be found by using the formula

workdone = force × distance

From the question we have

workdone = 60 × 20

We have the final answer as

<h3>1200 J</h3>

Hope this helps you

8 0
3 years ago
For a theoretical yield of 2.97 g and percent yield of 93.4452%, calculate the actual yield for a chemical reaction. Answer in u
MariettaO [177]

Answer:

2.77532244 grams

Explanation:

Percent yeild=actual/theoretical * 100

Plug in the values

93.4452=actual/2.97 *100

0.934452*2.97=2.77532244

3 0
2 years ago
Tips for studying last minute (respiratory system)?? most helpful tips will be rewarded brainliest
Aleks [24]
Tips
- write cue cards on respiratory system
- get someone to test you on your notes (friend,Mum,sister,brother ect)
- copy down diagrams of the system
- get someone to test you on Digram
- play online interactive games to test your knowledge on the respiratory system
- go through your textbook write a checklist things you know things you need to improve on.
- watch YouTube clips on the respiratory system
4 0
3 years ago
What are the four factors that affect the natural selection?
BaLLatris [955]

Answer:

• potential for a species to increase in number

• the heritable genetic variation/ which results from mutation in dna

• the size of a population increases

• competiton for resources that are limited in that specific environment.

Explanation:

these are all factors that would affect natural selection although there are many more.

6 0
3 years ago
Other questions:
  • Which of the following is a nonrenewable resource?
    5·2 answers
  • Based on its position on the periodic table, Na is a __ at room temperature.
    5·2 answers
  • In France, grapes are 1.75 Euros per kilogram. What is the cost of grapes in dollars per pound if the exchange rate is 1.36 doll
    13·1 answer
  • A compound has an empirical formula of
    8·2 answers
  • 1.Explain why the reactivity of group 7 decreases as you move down the group. Try to use the sentence starters here: When group
    8·1 answer
  • 3CuSO4
    6·1 answer
  • 17. What is the molarity of ZnCl2 that forms when 15 grams of Zn reacts completely with CuCl, if a
    13·1 answer
  • A mixture of He, Ar, and Xe has a total pressure of 2.40 atm. The partial pressure of He is 0.300 atm, and the partial pressure
    8·1 answer
  • Define the following:
    9·1 answer
  • How is the life cycle of a star similar to that of a human?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!