Given : Load = 50 kgf Load arm = 30 cm
Effort arm = 1.20m

What will be the Mechanical advantage ?
(equation must be shown)

1. how to locate the image in converging(concave) mirror and diverging (convex) mirror with salt. 2. how to locate the image in a converging (convex) lens and diverging (concave) lens with salt.

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot

Photons with the highest energy have the longest period