Answer:
Explanation:
To estimate the focal length of a convex lens follow the following steps.
1. take a convex lens.
2. Stand near a window which is just opposite to a wall.
3. Look at a tree which is far away from the window by the convex lens.
4. focus the image of the tree on the wall which is opposite to the window.
5. You wll observe that by changing the position of convex lens a sharp and inverted and small image is seen on the wall.
5. Now measure the distance between the lens and the wall.
7. This distance is the rough focal length of the convex lens.
The bowling ball would because it was bigger and even if they had the same speed the bowling ball still would contain the same force.
Answer:
Earth would suddenly warm up because more heat from the Sun would be allowed to enter the atmosphere.
Explanation:
The greenhouse gasses would make the ozone layer thinner letting in more harmful rays on the sun.
Hope this helps!! :)
Also I need one more brainliest if you dont mind giving it to me :)
Answer: θ = 102.3°
Explanation:
The reflected light will depart at 45.0° from the normal
Snell's law for the refracted light
1.00sin45 = 1.31sinθ
θ = arcsin(sin45.0/1.31) = 32.66840... ≈32.7°
The angle between these is 180 - 45 - 32.7 = 102.3°
F = qE = mg
E = mg/q = 0.017*9.81('-3.1x10^-6) = 5.38x10^4 = -53,800 N/C
E' = 0.5E = -26,900N/C
2q -mg= ma, Answer is 9.81 m/s^2 and it's positive because the force is upward.