Outcome (dependent) variable-drinking energy drinks
Test (independent) variable- more aggressive
D. ... with severe weather
The number is written in scientific notation.
The significant figures are the numbers known precisely plus 1 digit that is uncertain.
When the numbers are expressed in scientific notation all the digits before 10^n are significant.
So, 7 and 8 are significant figures and the answer is that the number of significant figures is 2.
Answer: 2
The question is incomplete, here is the complete question:
A nuclear fisston reaction has mass difference between the products and the reactants of 3.86 g. Calculate the amount of energy released by the reaction.
A) 1.16 * 10^6 * J
B) 2.59 * 10^9
C) 3.47 * 10^ 14 * J
D) 4.82 * 10^17 J
<u>Answer:</u> The amount of energy released by the reaction is
<u>Explanation:</u>
To calculate the energy released, we use Einstein equation, which is:
where,
= mass defect = 3.86 g = 0.00386 kg (Conversion factor: 1 kg = 1000 g)
c = speed of light =
Putting values in above equation, we get:
Hence, the amount of energy released by the reaction is