Before starting, we will convert all the givens into standard units as follows:
1.8 * 10^14 KJ/sec = 1.8 * 10^14 * 1000 = 1.8 * 10^17 J/sec
24 hours = 24 * 60 * 60 = 86400 second
Now, we are given that:
The earth receives 1.8 * 10^17 J/sec. We will begin by calculating the total energy received by the earth in 24-hours
Total energy = 1.8 * 10^17 * 86400 = 1.5552 * 10^22 Joules
Then we will get the mass from the following rule:
E = m * c^2 where:
E is the total energy = 1.5552 * 10^22 Joules
m is the mass we need to find
c is the speed of light = 3 * 10^8 m/sec
Substitute with the givens to get the mass as follows:
1.5552 * 10^22 = m * (3*10^8)^2
m = 172800 kg
Answer:
the answer will be Oa. 2.26
Answer:
Picking up marbles and placing them in a sack
Explanation:
The entropy of a chemical system is defined as the measure of disorder. Therefore a negative change in entropy is the movement to a more ordered state. The only option here which achieves a more ordered state, would be the first option.
Picking up marbles and placing them in a stack achieves more order, rather than the other options - that achieve more disorder.
Answer: A. they have similar chemical properties
Explanation: How are elements in the same group in the periodic table alike? A. they have similar chemical properties
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Organic molecules can be defined as carbon-containing molecules found in living things.
<h3>What are organic molecules?</h3>
They are chemical compounds that are mainly made up of carbon atoms.
<h3>Characteristics of organic molecules</h3>
- They derive their three-dimensional configurations primarily from their carbon skeletons.
- A major function of these molecules in living systems is to form the structural components of cells and tissues.
Therefore, we can conclude that the organic molecules are those that come from living beings, that is, they are compounds of biological origin, which contain carbon.
Learn more about organic molecules here: brainly.com/question/3176910
