Aperson applies a 50 n force on a crate, causing it to move horizontally at a constant speed through a distance of 10 m. what is the net work done on the crate?

The seven sisters, seven stars located more than 400 light-years away in the taurus constellation can be seen here with venus and another constellation, orion. the seven stars stay grouped together but seem to move, like the planet venus. why do stars seem to move like planets in the night sky?