The star α centauri c and the star groombridge 34 b have the same apparent magnitude, but α centauri c is 1.3 pc away from earth and groombridge 34 b is 3.5 pc away. what is the luminosity of groombridge 34 b compared with α centauri c?

The mentor is usually a peer of the individual that acts as a role model and the individual get started in adult life.

The mass of a bowling ball is 10 kg and the mass of a ping pong ball is 0.015 kg. if the two objects are 5 meters apart, what is the gravitational force ?

Consider a double atwood machine constructed as follows: a mass 4m is suspended from a string that passes over a massless pulley on frictionless bearings. the other end of this string supports a second similar pulley, over which passes a second string supporting a mass of 3m at one end and m at the other. using two suitable generalized coordinates, set up the lagrangian and use the lagrange equations to find the acceleration of the mass 4m when the system is released. explain why the top pulley rotates even though it carries equal weights on each side.