Kid A has jumped off the sled! (RIP)

Two kids are left riding on a snow sled traveling horizontally without friction at 11.7 m/s. The masses of kid B, and C are 36.7 kg, and 45.2 kg, respectively.

What is the new velocity of the sled if Kid B jumps off backwards at v = -31.1 m/s?

Atelevision set that has been running for a while heats up even the air around it. which two laws of thermodynamics could be used to analyze this scenario

What would be the strength of earth's gravitational field at a point where an 80.0 kg astronaut would experience a 80% reduction in weight

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