To save on heating bills, do you think the roof of a building should be lined with 1. a thermal conductor

2. a thermal insulator

3. nothing

Question 3(multiple choice worth 4 points) (04.04 lc) what does it mean when an element is reduced? it empties a valance shell, reducing its atomic radius. it gains electrons, reducing its overall charge. it increases electronegativity, reducing its ability to bond. it loses electrons, reducing its electron number.

What would happen to a volleyball left outside in the winter? o o o o a. it would expand. b. it would lose air. c. it would shrink. d. it would explode.

Acar parked on level pavement exerts a force of 10,000 newtons on the ground. what force does the pavement exert back on the car? (f = ma, g = 9.81 m/s2)