Eli rolled a ball down the cement sidewalk as hard as he could. The ball rolled for less than a minute before it came to a stop.
What force acted to slow and finally stop the ball? A. friction, acting in the same direction as the motion of the ball B. the normal force, pushing upward on the ball C. friction, acting in opposition to the motion of the ball D. the normal force, pulling downward on the ball
<span>because the substance in the potassium permanganate crystals are permeable to water, so that means it will dissolve instantly while poured into water </span>
