Which of these correctly pairs a positive and a negative of exposure to UV radiation? *
Helps the body produce Vlt D; Can cause skin cancer
Creates healthy, glowing skin; Too much exposure can result in overproduction of Vit
D
Helps the body create Vit K; Weakens teeth and bones
Suppresses the immune system; Helps the body produce Vit K

a.) travels faster in solids because the particles are closer together.

air is a gas water is a liquid

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

-reverse card

the old price per ounce is c/4.

the new price per ounce is c/3.6.

the ratio of the old price to the new one is

(c/4)/(c/3.6) = (c/c)×(3.6/4) = 0.9 . . = 9/10 . . "nine tenths" in either form