Answer:hi lol
Step-by-step explanation:
Volume of the barrel = pi * r^2 * h
= 22/7 * (3/2)^2 * 4.5
= 31.82 feet^3
1. Perpendicular to its radius
2. 0
Answer:
A lies along the positive x-axis and B lies along negative x - axis
.
Step-by-step explanation:
They tell us that we have two vectors, A and B. And they give us a series of conditions for this, now, what would be the correct possibility.
A lies along the positive x-axis and B lies along negative x - axis
.
This is because when both vectors will be in x axis but opposite to each other, then the angle between them will be 180 ° and cos180 ° is -1.
