Fn=20kg(5m/5^2)-(-250N)=

An object has a weight of 500 on earth what is the mass of this object

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.

In a system, when potential energy decreases, then entropy also decreases. true false