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
sashaice [31]
3 years ago
10

A helium balloon rises because helium is dense than air

Physics
2 answers:
klio [65]3 years ago
8 0

Answer:

Less APEX Verified

Explanation:

Ganezh [65]3 years ago
5 0

This statement is True

You might be interested in
Which state of matter has the MOST energy?
Nonamiya [84]

Answer:

Gas

Explanation:

The gas state of matter has the most energy because of how freely the molecules move

4 0
3 years ago
Does potential energy increase,kinetic energy decrease when a book is placed on a shelf
DerKrebs [107]
Yes potential increases while kinetic decreases
3 0
3 years ago
A 100kg crate slides along a floor with a starting velocity of 21ms If the force due to friction is 8N how long will it take for
GaryK [48]

A 100kg crate slides along a floor with a starting velocity of 21 m/s. If the force due to friction is 8N, then, it will take 262.5 s for the box to come to rest.

We'll begin by calculating the declaration of the box. This can be obtained as follow:

Force (F) = –8 N (opposition)

Mass (m) = 100 Kg

<h3>Deceleration (a) =? </h3>

<h3>F = ma</h3>

–8 = 100 × a

Divide both side by 1000

a = \frac{-8}{100}

<h3>a = –0.08 ms¯²</h3>

Therefore, the deceleration of the box is –0.08 ms¯²

Finally, we shall determine the time taken for the box to come to rest. This can be obtained as follow:

Deceleration (a) = –0.08 ms¯²

Initial velocity (u) = 21 ms¯¹

Final velocity (v) = 0 ms¯¹

<h3>Time (t) =.? </h3>

<h3>v = u + at</h3>

0 = 21 + (–0.08×t)

0 = 21 – 0.08t

Collect like terms

0 – 21 = –0.08t

–21 = –0.08t

Divide both side by –0.08

t = \frac{-21}{-0.08}\\\\

<h3>t = 262.5 s</h3>

Therefore, it will take 262.5 s for the box to come to rest.

Learn more: brainly.com/question/14446351

7 0
2 years ago
find the distance traveled in km when the average speed is 60 km per hour and the time taken is 3 and 1/2 hours​
Anna35 [415]

Answer:

210 km

Explanation:

60 x 3  1/2 = 210

3 0
3 years ago
Its biggest fault is the lack of carefully controlled and thoughtfully interpreted experiments.
Jobisdone [24]

Pseudoscience

Pseudoscience is made of up statements, beliefs or practices that claim to be scientific and factual but are not based in the scientific method.

5 0
3 years ago
Other questions:
  • Why does the mass spectrum of Br2 contain three signals whose heights are almost in the ratio of 1:2:1? What are the origins of
    15·1 answer
  • How can you use climatograph in a sentence? How can you use ecozone in a sentence?
    9·1 answer
  • If a compound has a very low melting and boiling point, it is likely that the compound possesses mainly which type of intermolec
    5·1 answer
  • The total number of protons and neutrons in the nucleus of an atom
    10·1 answer
  • Gas hydrates are used ___
    13·2 answers
  • In the waves lab you change blank to see how it would affect wave speed​
    7·1 answer
  • To add to the complexity, those precious atoms face the peril of disintegrating into the void. Luckily, by now, they are feeling
    15·1 answer
  • What were some major reasons for the american television from analog broadcast to digital broadcast?
    5·2 answers
  • Explain what it means when scientists say that the offspring of sexual reproduction are genetically diverse.
    11·1 answer
  • Andrew is riding his bike is riding in a circle that has a radius of 10 m. He keeps
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!