Answer:
¨Facts you didn´t know¨ or ¨unknown facts¨
Explanation:
The work is path independent since we have a conservative force.
Thus
Answer (1)
D. used by the entire scientific community
B. more accurate system of measurement
Answer:
v = sqrt[2*(F*h*cot(theta)-mgh)/m]
Explanation:
Work = KE + Ug
F*r=1/2mv^2+mgh
1/2mv^2=F*r-mgh
v=sqrt[2(F*r-mgh)/m]
r=h/tan(theta)=h*cot(theta)
Answer:
c
Explanation:
efficiency is measured in % hence 0.02% is smaller than 20%