My Channel Maximum range of a projectile fired from a tower Cycloid Locus in Pure Rolling and Magnetism - JEE Advanced Physics Electric field due to a hemisphere carrying uniform charge of density 'sigma' on its curved surface Weight of a chain hanging inside a tunnel through Earth's diameter If Earth cools would a day become smaller? Electric field due to half cylindrical surface charge Gas being heated, piston pushed up compressing the spring - a classic thermodynamics problem Damped oscillations problem Force of attraction between two vertical plates immersed in a liquid, due to surface tension