Is my answer correct. Will mark brainliest.

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?

Which composition of water moves to begin a deepwater current?

Of is j/kg·k. if a 2.6 kg of isk to k,is ?