A bowl contained 19.1 grams of salt. Then, Kaitlin poured in another 77.49 grams. How much salt does the bowl contain now?

Light traveling in water, nwater = 1.33, strikes a plastic block at an angle of incidence of 51.4°; part of the beam is reflected and part is refracted. if the index of refraction of the plastic is 2.0, what is the angle made by the reflected and refracted beams?

The frequency of the fundamental of the guitar string is 320 hz. at what speed v do waves move along that string?

Aperson touches a large chunk of ice with their hand and remarks, “this is making me cold.” explain what this person is feeling. is the ice transferring “cold” to the person? is there a heat transfer occurring? explain.