Water is made to fall drop by drop on the surface of a pool at the rate 120 drops per minute. As aresult, circular ripples are formed on the surface and the distance between the third circle and theseventh circle is 60m. a) Calculate the frequency, period and wavelength. b) Deduce the speed of propagation of the waves on the water surface

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.

root word, prefixes, and suffixes

i think the answer is tomato juice? not entirely sure though