Calculate the energy of visible light with a wavelength of 4.80 x 10^-7 m. -SHOW ALL YOUR WORK. -Include UNITS. -Round your answer to the appropriate number of SIGNIFICANT FIGURES. -Always answer in SCIENTIFIC NOTATION

If oil spills continue, all of the following should be expected except (2 points) death of aquatic life. polluted groundwater. decreased soil productivity. increased global temperatures.

Light waves can move through , but they travel fastest when they move through a(n) .

Astudent pours 10.0 g of salt into a container of water and observes the amount of time it takes for the salt to dissolve. she then repeats the process using the same amounts of salt and water but this time she slowly stirs the mixture while it is dissolving. the student performs the experiment one more time but this time she stirs the mixture rapidly. the dependent variable in this experiment is: time for salt to dissolve speed of stirring amount of water mass of salt