It’s B I’m 100% positive have a good day and I hope you feels high school
Each musical instrument is build differently which allows it to portray a different sound kinda like humans with their voices
<h3>
Answer:</h3>
4704 Joules
<h3>
Explanation:</h3>
<u>We are given</u>;
- Mass of the firefighter is 80 kg
- Height of the stairs is 6 m
Assuming we are required to calculate the work done by the firefighter;
- Work done is the product of force and distance.
- Work done = Force × distance
We are given mass as 80 kg
But, 9.8 N = 1kg
Therefore,
Force = 80 kg × 9.8 N/kg
= 784 N
Therefore,
Work done = 784 N × 6 m
<u>= 4704 Joules </u>
A covalent bond
A covalent bond is a chemical bond formed when two atoms share one or more pairs of valence electrons
