Pls help Can someone tell me how close are the coefficients of friction for the sled on ice for two runs ??

The summit of chimborazo, in ecuador, which is at a distance of about 6,384 km from the earth’s center. the bottom of the mariana trench, in the western pacific ocean, which is nearly 6,370 km from the center of the earth. on the surface of earth on the equator line.

Achild has maximum walking speed of 1.6 m/s. what is the length of the child's legs? 0.26 m

The ability to make things happen is also called a. heat b. force c. matter d. energy