Asprinter with a mass of 70 kg accelerates at a rate of 5 m/. what force is the sprinter exerting

In this experiment, you will use a track, a toy car, and some washers to explore newton’s first two laws of motion. you will make observations and collect data regarding the motion of these objects. in the space below, write a general scientific question that you will answer by doing this experiment.

Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.

The radius of a sphere is increasing at a rate of 9 cm/ sec. find the radius of the sphere when the volume and the radius of the sphere are increasing at the same numerical rate.