Mrs. garcia's earth science class conducted an experiment on how earth absorbed solar radiation. they placed four different sheets of colored paper around the playground: white, tan, green, and black. after 15 minutes, several students were blindfolded and then asked to figure out the color of the papers by how cool or warm they felt to the touch. predict which color the students said was the warmest and which one was the coolest to the touch. explain why this happened.

Aperson gives a shopping cart an initial push along a horizontal floor to get it moving, and then lets go. the cart travels forward along the floor, gradually slowing as it moves. consider the horizontal force(s) on the cart while it is moving forward and slowing. which of the following statements is correct? (a) both a forward and a backward force are acting on the cart, but the forward force is larger. (b) only a forward force is acting which diminishes with time. (c) both a forward and a backward force are acting on the cart, but the backward force is larger. (d) only a backward force is acting, no forward force.