din A pleaca spre B un mobilcu viteza de 20m/s. dupa t1=2 minute pleaca din A spre B, un mobil, cu viteza 30m/s. dupa cat timp ajunge in B primul corp?

Agymnast dismounts off the uneven bars in a tuck position with a radius of 0.3m (assume she is a solid sphere) and an angular velocity of 2rev/s. during the dismount she stretches out into the straight position, with a length of 1.5m, (assume she is a uniform rod through the center) for her landing. the gymnast has a mass of 50kg. what is her angular velocity in the straight position?

What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wavelength of 480 ? the index of refraction of the film is 1.34, and there is air on both sides of the film. express your answer in nanometers. hint 1. how to approach th

Ain is , is 's of ? 0.62 0.79 1.27 1.50