In softball, the pitcher throws underhanded with the arm fully extended (straight at the elbow). in a fast pitch the ball (m = 0.151 kg) leaves the hand when the arm is pointed straight downwards at a speed of 139 km/h.

In a laboratory, nakisha mixes sodium hydroxide solution with an indicator called phenolphthalein. when combined, they create a pink solution. nakisha wonders if mixing other solutions with phenolphthalein will also create this pink color. how could she use the scientific inquiry process to explore it further?

The particles that are found in the nucleus of an atom are

Which of the following examples illustrates static friction? a box sits stationary on a ramp. a ball rolling on the lawn eventually comes to rest. a car rounds a curve on a road. a fish swims upstream.