Aforce of 15 n is applied to a spring, causing it to stretch 0.3 m. what is the spring constant for this particular spring?

Write the correct abbreviation for each metric unit

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?

Which bonds are found inside a water molecule