A70-kg runner pushes off from the starting blocks with a force of 335n. what is her acceleration

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.

This is the substance(s) formed in a chemical reaction.

Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?