Smoke is a mixture of solid, liquid, and gas particles. although the solid particles make the smoke visible, most of the smoke mixture is gas. which visible quality of smoke shows that it contains a lot of gas influencing the other particles? the shade of the color is different in different places. smoke usually has an unpleasant smell. smoke rises out of very hot substances. the shape of the smoke changes very easild. the shape of the smoke changes very easily.

Abearing is designed to a reduce friction b. support a load c. guide moving parts such as wheels, shafts and pivots d. all of the above

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.

This is one type of line graph in which the independent variable is time plotted on the x axis and the dependent variable, also numerical, is plotted on the y axis.