Answer:
The group of light rays is reflected back towards the focal point thereby producing a magnifying effect.
Explanation:
Well her speed and velocity are the same 8 kilometers per hour<span />
Weight of the barbell W = 200 Ndistance of the joint is r = 40 cm = 0.4 mtorque created by the weight at the joint is τ = F*r = 200 N*0.4 m = 80 N.mat equilibrium condition , Στ = force*distance - 80 N.m = 0 F'*0.4 - 80 N.m = 0 F'*0.4 = 80 force F' = 200 N
The particles vibrate against each other in a soild state........i think
