What is the frequency, f, of UV light that has an energy of 5.2 x 10*J? Use the equation, E=hf. Plank's constant, h, is 6.626 x 10-34 ?

Which property of a rock remains unchanged by mechanical weathering? a. total surface area b. size and shape c. mineral composition d. sharpness

Mercury metal is poured into a graduated cylinder that holds exactly 22.5 ml the mercury used to fill the cylinder mass in 306.0 g from this information calculate the density of mercury

Someone do this for me. im really stuck