Evan has a rock. the rock has a mass of 12g and a volume of 4cm3. what is the density of the rock?

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

To calculate percent by mass, use the equation below: calculate the percent by mass of each element. %n = % %h = % %o = %

How big are the bighest ocean waves at mavericks