1. Two spherical objects have masses of 1.8 x 105 kg and 12.5 x 102 kg. Their centers are separated by a distance of 3000 m. Find the
gravitational attraction between them.

Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied.

Arotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s^{2} 2 at the rim?

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm