Four items are affected by a change in temperature. Which one of the following results in a chemical change? A. water drops forming on a cold soda can
B. a wet beach towel drying in the sun
C. melting chocolate on a stove
D. making cookies in an oven

Suppose that a comet that was seen in 563 a. d. by chinese astronomers was spotted again in year 1951. assume the time between observations is the period of the comet and take its eccentricity as 0.986. what are (a) the semimajor axis of the comet's orbit and (b) its greatest distance from the sun?

What is created when solids, liquids, an gases mix with one another

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n