Answer: Chemical energy to kinetic energy, heat energy, sound energy and light energy.
Explanation: The crackers are made up of gunpowder which is a chemical substance. When this gunpowder powder burns it produces smoke and hot gases (generation of heat and light energy) which create high pressure inside the can and blows the can open, and make all the tiny particles of powder blow out and chemical energy is converted to kinetic energy.
It makes the air to push outward and when it collapses back, it leads to generation of sound. So the chemical energy stored in gunpowder gets converted to sound.
Revolution and rotation are the terms that describe the different movements of the earth.
<h3 /><h3>What is the earth?</h3>
Our home planet is Earth. Earth and its moon, according to scientists, originated about the same period as the rest of the solar system.
That would have been around 4.5 billion years ago, according to scientists. Earth is the solar system's fifth-largest planet.
The rotation and revolution of the earth are two different movements. The movement of the earth on its axis is known as rotation.
Revolution is the movement of the earth around the sun in a fixed route or orbit. The earth's axis, which is an imaginary line, forms a 6612° angle with its orbital plane.
Hence revolution and rotation are the terms that describe the different movements of the earth.
To learn more about the earth refer to the link;
brainly.com/question/14042561
Answer:
7407.4 units
Explanation:
m(t) = m(0) e^kt
Here, k = - 0.000135
So, the above equation becomes
m(t) = m(0) e^(-0.000135 t)
Compare with the standard equation of radioactivity
m(t) = m(0) e^-λt
Where, λ be the decay constant
So. λ = 0.000135
The relation between the decay constant and the mean life is
ζ = 1 / λ
Where, ζ is the mean life
So, ζ = 1 / 0.000135 = 7407.4 units
The answer to question 9 is the last one, be elevator is 10m/s and the other is -10m/s as they are going in different directions so one will be negative