Answer:
D. Polaris and Sirius are farther away than the Sun.
Explanation:
The radiation intercepted by Earth is inversely proportional to the square of the distance from the source. Polaris and Sirius are substantially farther away than the sun.
Polaris, for example, is about 27 million times farther away, so even though it is 4000 times brighter, we receive on the order of 5×10^-12 as much radiation from that star as from the sun.
We feel less heat from stars other than the Sun because they are farther away.
Answer: there are three different methods of determining the age of a landform.
1 radiation measurement
2 stratigraphic superposition
3 the fossil record
by using these or a combination of these they determined that the earth is around 4.6 billion years old. and this is where the big bang theory comes into play.
Answer:
The answer is given below
Explanation:
When electronegativity difference arises between the bonded atoms, then a molecule is polar.
When electros are shared equally between the bonded atoms or when the polar bonds in a bigger molecule cancels out each other, then a a molucule is non polar.
(a) 50% isopropanol/H2O,--- 2 (second least polar)
(b) 25% isopropanol/H2O,----- 3 (third least polar)
(c) pure water----- is 4 (most polar)
(d) 70% isopropanol/H2O. 1 (least polar)
The identity of a metal that has a mass of 27.0g and a volume of 10.0cm is Aluminium. That is option B.
<h3>What is molar mass?</h3>
Molar mass is defined as the mass in grams of one mole of an element. This is measured in grams/mole of that substance.
The metal that is 27.0 g and a volume of 10.0 cm3 is aluminium because aluminium is 27 times heavier than 1/12th of the mass of carbon-12 atom.
Therefore, the identity of a metal that has a mass of 27.0g and a volume of 10.0cm is Aluminium.
Learn more about molar mass here:
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Answer:
c) that the formation and decomposition of ES is the same for a period of time
Explanation:
Michaelis-Menten equation :
This model explain the approach to enzyme kinetics.The Equation shows how a Free enzyme E and Product P is formed depicting by Following equation.
E+S⇌ES→E+P
Left side represents
E =enzyme
S=substrate
ES=enzyme-substrate complex
Right side
E= Free enzyme
P= product
c) that the formation and decomposition of ES is the same for a period of time
