Silver is composed of a single type of atom and cannot be broken down into different substances. silver is an example of a(n)
a. element
b. compound
c. molecule

Truck traveling west on the highway experiences an acceleration to the east. what could be the cause of this acceleration

In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant

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?