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
mario62 [17]
2 years ago
8

What happens when a candle burns?

Physics
1 answer:
slega [8]2 years ago
5 0

Answer:

oxygen is used up is the answer

Explanation:

These vaporized molecules are drawn up into the flame, where they react with oxygen from the air to create heat, light, water vapor (H2O) and carbon dioxide (CO2).

You might be interested in
Where are the magnetic fields strongest near a bar magnet?
KatRina [158]
The answer is near the poles.
3 0
2 years ago
Read 2 more answers
The tub of a washer goes into its spin-dry cycle, starting from rest and reaching an angular speed of 2.0 rev/s in 11.0 s. At th
mojhsa [17]

Answer:

Total angular displacement will be  19.998 radian  

Explanation:

It is given that the washer starts from the rest and reach reach the speed of 2 rev/sec in 11 sec

So initial angular velocity \omega _i=0rad/sec

And final angular velocity \omega _f=11rad/sec

Time t = 11 sec

So angular acceleration \alpha =\frac{\omega _f-\omega _i}{t}=\frac{2-0}{11}=0.1818rad/sec^2

So angular displacement in this 11 sec

\Theta =\omega _it+\frac{1}{2}\alpha t^2=0\times 11+\frac{1}{2}\times 0.1818\times 11^2

\Theta =\omega _it+\frac{1}{2}\alpha t^2=0\times 11+\frac{1}{2}\times 0.1818\times 11^2=10.99radian

Now the washer slows down and stops in 9 sec

So final angular velocity = 0 rad/sec

So angular acceleration \alpha =\frac{0-2}{9}=-0.222rad/sec^2

So angular displacement \Theta =2\times 9-\frac{1}{2}\times 0.222\times 9^2=8.991radian

So total displacement in 20 sec = =10.999+8.999=19.998radian

3 0
3 years ago
Can anyone please help me with this one
Vinvika [58]
Ur in k12 ALVA too???
6 0
3 years ago
A)Calculate the effective value of g, the acceleration of gravity, at 7900 m above the Earth's surface.
arsen [322]

The solution for the acceleration of gravity is given as

  • g_{1}=9.789 \mathrm{~m} / \mathrm{s}^{2}$
  • g_2=1.955 \mathrm{~m} / \mathrm{s}^{2}$

This is further explained below.

<h3>What is the effective value of g, the acceleration of gravity, at 7900 km above the Earth's surface.?</h3>

Generally,

Mass of earth $M=5.97 \times 10^{24} \mathrm{~kg}$

Radius of earth $R=6371 \mathrm{~km}$

Gravitational const. $G=6.67 \times 10^{-11} \mathrm{Nm}^{2} \mathrm{~kg}^{-2}$

height $h_{1}=7900 \mathrm{~m}=7.9 \mathrm{~km}$$$

R+h_{1}=6371+7.9 &\\\\R+h_{1}=6378.9 \mathrm{~km} \\\\&R+h_{1}=6378.9 \times 10^{3} \mathrm{~m}\end{aligned}

In conclusion, acceleration due to gravity at this point will be

g_{1}=\frac{G M}{\left(\bar{R}+\overline{h_{1}}\right)^{2}}$\\\\$g_{1}=\frac{6.67 \times 10^{-11} \times 5.97 \times 10^{24}}{\left(6378.9 \times 10^{3}\right)^{2}}$\\\\$g_{1}=9.789 \mathrm{~m} / \mathrm{s}^{2}$

for $h_{2}=7900 \mathrm{~km}$

R+h_{2}=6371+7900\\\\R+h_{2}=14271 \mathrm{~km}\\\\$g_{2}=\frac{6.67 \times 10^{-11} \times 5.97 \times 10^{24}}{\left(14271 \times 10^{3}\right)^{2}}$\\\\$g_2=1.955 \mathrm{~m} / \mathrm{s}^{2}$

Read more about acceleration due to gravity

brainly.com/question/13860566

#SPJ1

5 0
2 years ago
What force was applied to an object if 35 J of work was done and the object moved 7m ?
den301095 [7]
The force applied to the object is 5 n
5 0
3 years ago
Other questions:
  • Determine the heat energy required to vaporize 13.9 grams of liquid water at 100° C. O 2,006 cal O 47.8 cal O 7,506 cal O 24.9 c
    12·1 answer
  • What part of an atom is involved in electricity and magnetism?*
    15·2 answers
  • A 125 g pendulum bob hung on a string of length 35 cm has the same period as when the bob is hung from a spring and caused to os
    11·1 answer
  • A body floats at a volume of 2/5 when it is placed in oil, how dense the object is ....s=900km/m3​
    10·1 answer
  • How does the density of water change when: (a) it is heated from 0o
    5·1 answer
  • Score
    12·1 answer
  • Boron is one position to the left of carbon on the periodic table. The atomic number of carbon is 6. Given its position on the p
    9·1 answer
  • How fast must a train accelerates from rest to cover 518 m in the first 7.48 s?
    5·1 answer
  • What does Newton's first law of motion state? (3 points) a Every action has an equal and opposite reaction. b A body at rest wil
    13·2 answers
  • Prove that density of 5l of water is 1000
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!