Answer:
<em>Hewo Otaku Kun Here! (UwU)</em>
Explanation:
1. A rock sitting at the edge of a cliff has potential energy. If the rock falls, the potential energy will be converted to kinetic energy.
2. Tree branches high up in a tree have potential energy because they can fall to the ground.
3. A stick of dynamite has chemical potential energy that would be released when the activation energy from the fuse comes into contact with the chemicals.
4. The food we eat has chemical potential energy because as our body digests it, it provides us with energy for basic metabolism.
5. A stretched spring in a pinball machine has elastic potential energy and can move the steel ball when released.
6. When a crane swings a wrecking ball up to a certain height, it gains more potential energy and has the ability to crash through buildings.
7. A set of double "A" batteries in a remote control car possess chemical potential energy which can supply electricity to run the car.
<em>happy to help!</em>
<em>from: Otaku Kun ^^</em>
The correct answer to the question is D.Biosphere
Every planet has it's own gravity.Hence, they have their own atmosphere.The concentration of particles and gases may vary from planet to planet depending on their force of gravity.
Every planet contains the lithosphere,the hard and rigid outer layer which contains the crust and mantle.
Earth is the only habitable planet which supports biosphere.Its atmosphere contains 20% of oxygen along with nitrogen which are responsible for sustaining various types of flora and fauna as well as evolution of new species.
<h3><u>Given</u><u>:</u></h3>
Force,F = 100 N
Acceleration,a = 5 m/s²
<h3><u>To</u><u> </u><u>be</u><u> </u><u>calculated:-</u><u> </u></h3>
Calculate the mass of a box.
<h3><u>Solution:-</u><u> </u></h3>
★Putting the values in the above formula,we get:
Thus,the mass of a box is 2 kg.
As per Newton's II law we know that
here for the first case we know that
m = 3 kg
now we will have
now for other case we will have
m = 6 kg
now we have