If you're holding the apple at your waist, lift it to your mouth.
Potential energy relative to any level is proportional to its height
above that level. Increase that height, and you've increased the
potential energy.
Since energy is conserved ... it never magically appears or
disappears ... you need to tell where that extra energy for the
apple came from.
It's exactly the work you did ... the force of your muscles acting
through the distance you raised the apple ... that became the
additional potential energy that the apple gained.
I see the picture can you send it to me
Changes in matter occur every day. There are two types of ways matter can be altered; physically and chemically. Physical changes do not change the composition of the matter while chemical changes occur when one or more substances turn into a completely new substance. Physical changes can be seen through an altering of the substances physical property. A substances physical property is observed and measured without changing the composition of the subject. Descriptive words that would help to identify a substance’s physical property include hard, soft, brittle, flexible, heavy, and light just to name a few. Let’s say you’re eating, throughout the day your stomach starts to growl that is what happens when your stomach is digesting your food. Digestion is an example of chemical change. Chemical change happens every day and more than half the time we don’t realize it whether it’s metal starting to rust, or our food starting to rot. Physical change can happen when your popsicle starts to melt, or your water starting starting to boil. These are examples of physical change.
Answer :
(a) 0.0152
(b) 0.0000000778
(c) 0.000001
(d) 1600.1
Explanation :
Scientific notation : It is the representation of expressing the numbers that are too big or too small and are represented in the decimal form with one digit before the decimal point times 10 raise to the power.
For example :
5000 is written as ![5.0\times 10^3](https://tex.z-dn.net/?f=5.0%5Ctimes%2010%5E3)
889.9 is written as ![8.899\times 10^{-2}](https://tex.z-dn.net/?f=8.899%5Ctimes%2010%5E%7B-2%7D)
In this examples, 5000 and 889.9 are written in the standard notation and
and
are written in the scientific notation.
(a) ![1.52\times 10^{-2}](https://tex.z-dn.net/?f=1.52%5Ctimes%2010%5E%7B-2%7D)
The standard notation is, 0.0152
(b) ![7.78\times 10^{-8}](https://tex.z-dn.net/?f=7.78%5Ctimes%2010%5E%7B-8%7D)
The standard notation is, 0.0000000778
(c) ![1\times 10^{-6}](https://tex.z-dn.net/?f=1%5Ctimes%2010%5E%7B-6%7D)
The standard notation is, 0.000001
(d) ![1.6001\times 10^{3}](https://tex.z-dn.net/?f=1.6001%5Ctimes%2010%5E%7B3%7D)
The standard notation is, 1600.1