What is the relative velocity between two cars moving in the opposite direction with velocity 20m/s​

Ais not a mixture. colloid compound suspension solution

When you hold a rectangular object, how does the area of the side that is resting on your hand affect the pressure and the force that the object exerts?

An astronaut on the moon throws a baseball upward. the astronaut is 6 ft, 6 in. tall, and the initial velocity of the ball is 3030 ft per sec. the height s of the ball in feet is given by the equation s equals negative 2.7 t squared plus 30 t plus 6.5s=−2.7t2+30t+6.5, where t is the number of seconds after the ball was thrown. complete parts a and b.