The amount of movement that each joint in perform is called​

Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?

Positrons are spontaneously emitted from the nuclei of

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?