þ.) A fossil has 1.56% parent and 98.4% daughter atoms & has a Half-Life of 3 million years. How old is the rock?

Aball bearing at 220.0 °c is dropped into a cup containing 250.0 g of water at 20.0 °c. the water and ball bearing come to a temperature of 30.0 °c. what is the heat capacity of the ball bearing in j/°c? (hint: how are the algebraic signs of q related for the ball bearing and the water? )

Select the correct answer. anna will wear a black dress when she attends het cousin's wedding. which color(s) does the dress absorb? a. all colors b. no colors c. red and green d. white

When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical