The density of mercury is 13.54 g/cm3. Suppose you need 40 gm of mercury for an experiment. What volume of mercury do you need?

2.95cm^3

Explanation:

density=13.54g/cm^3

Mass=40gm

Volume=mass ➗ density

Volume=40 ➗ 13.54

Volume=2.95cm^3

answer: d. a cme increases the amount of energy in the solar wind

explanation:

coronal mass ejections, also called cmes, are large clouds of plasma and magnetic field that erupt from the sun. only when the cloud is aimed at earth will the cme hit earth and therefore cause impacts. high-speed solar wind streams come from areas on the sun known as coronal holes.

a lot of it means it can be "burned" for energy and sold at one price. if it is scarce, the price will go up