The seasons on earth are created by all of the following except:
c. mountain winds
I think the correct answer from the choices listed above is the third option. <span>A 2-N force presses down on the cement block at the same time as a 1.5 -N Force presses up on the cement blocks is an unbalanced system. The forces does not equate to zero. Hope this answers the question. Have a nice day.</span>
For the moon to be visible during the day, it must be up in the sky at the same time as the sun, but not so close to the sun in the sky that you can't see it. The full moon rises at sunset, is up all night, and sets at sunrise, so you can't see a full moon in the daytime.
Answer:
Explanation:
If I be the intensity of original light , after first polarization , its intensity becomes I/2
After second polarization its intensity becomes I/2 X Cos²θ
where θ is the angle between the two polaroids
So I₁ = I/2 Cos²θ
I₁ / I =.5 X Cos²θ = 0.123
Cos²θ = 0.246
θ = 60 degree. Ans
Answer:
570 N
Explanation:
Friction = normal force × coefficient of friction
F = Nμ
71.2 = N (0.125)
N = 569.6
Rounded to 3 significant figures, the normal force is 570. N.