A plane flying horizontally at 350 m/s releases a package at an altitude of 1500 m. (a) How long will the package take to hit the ground? (b) How far will it move horizontally while falling?

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