A 5kg ball held above the ground has 500 J of gravitational potential energy if the ball is allowed to fall how much velocity does it have just before hitting the ground

Ais not a mixture. colloid compound suspension solution

1. explain how you calculate the net force in any direction on the box. 2. suppose an upward force of 15n is added to the box. what will be the net vertical force on the box? 3. what force could be applied to the box to make the net force in the horizontal direction zero? explain. 4. suppose a force of 25n to the right is added to the box. what will be the net force to the right?

Mixing salt in water is an example of physical change