A car traveled 70 km in 2 hours, 104 km in the next 1.5 hours, and then 79 km in 2 hours before reaching its destination. What was the car’s average speed? (Don’t forget to label your units!)

How many molecules are present in 3 mols of silicon dioxide (sio2)?

Unpolarized light whose intensity is 1.19 w/ is incident on a polarizer. (a) what is the intensity of the light leaving the polarizer? (b) if the analyzer is set at an angle of = 41.0∘ with respect to the polarizer, what is the intensity of the light that reaches the photocell?

Gather reliable information to brent make his decision. to gather this information, use newspapers, call insurance companies or look at their web sites, and review consumer magazines and web sites. also, look at the manufacturer web site or for information about gas mileage. list the sources you use and take notes.