Answer:
2795.3 J
Explanation:
distance, d = 28 feet = 8.53 m
Force, F = 80 lb = 356 N
Angle, θ = 23°
Work = F x d x cos θ
W = 356 x 8.53 x cos 23
W = 2795.3 J
Thus, the work done is 2795.3 J.
Answer:
Chemical symbols Al, O, H, O or a,c,f,h.
Coefficient 2 or e.
Number of atoms of the element - b,d ,g.
One atom of the element - i.
A proton repelling another proton
Like charges of the protons would repel one another.
