Outside our solar system the closest star to earth is Proxima century life from the start takes 2200000 minutes to reach earth. light in the Sun takes 8.3 minutes to reach. the speed of light is 18 00 0000 km/minute by calculation compare the distance of proxima century the Earth to the distance of the Sun from the Earth

Standing side by side ,you and a friend step off a bridge at different times and fall for 1.6s to the water below.your friend goes first,and you follow after he has dropped a distance of 2.0m.when your friend hits the water,is the seperation between the two of you 2.0m or more than 2.0m? verify your answer with a calculation.

Sound is a disturbance that travels through a medium as a

Abar magnet cut in half will form a total ofpoles.a)fourb)eightc)two