Which of these uses the principle of superposition of rocks to compare the age of fossils? a. carbon half-life b. radioactive dating c. relative dating d. uranium half-life

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?

Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?

The vapour pressure of benzene is 53.3 kpa at 60.6 °c, but it fell to 51.5 kpa when 19.0 g of a non-volatile organic compound was dissolved in 500 g of benzene. calculate the molar mass of the compound.