Power of the lens is -40 its focal length is ? ?
a) 4m
b) -40m
c)-0.25m
d) -25m

The variables for this experiment include mass, volume and the materials in the various balls, as well as their densities. in part iii, you will be investigating the questionable baseball. use the drop-down menus to complete the sentences and identify the independent and dependent variables. in part iii, the independent variable, the one that is intentionally manipulated, is . in part iii, the dependent variable, the one that you measure the response in, is

Two polarizers are oriented at 70∘∘ to one another. unpolarized light falls on them. what fraction of the light intensity is transmitted?

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane