A balloon has a mass of 104g and a volume of 7 cm. What is its density? 54 S
13.2
cm
14.868
Cm
0.07
cm

Asample of a gaseous substance changes into a liquid

Which is not a characteristic of a heat pump? a. it is used in air conditioners. b. it uses a refrigerant. c. it requires no work. d. it reverses the normal flow of thermal energy.

Which is not true of the intertropical convergence zone? a) it features heavy precipitation b) it's where the trade winds collidec) it's a high-pressure zone with sinking air d) it is also known as the doldrums