Please help 50 points given not cap The sun is too big to be a star.
True or False
The stars in a constellation are close together
True or False
Though stars appear very small, they are actually very big.
True or False

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?

All the simple machines make work easier to do by changing the or of a force. a. size; type b. work; type c. size; direction d. type; direction

An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?