What is the basic unit of energy?
o
a. the kilogram
o b. the what
o
c. the joule
o
d. the amp

Which statement describes the appearance of a temperature-vs.-time graph? a horizontal line shows that the temperature increases at a constant rate over time. a vertical line shows that the temperature decreases at a constant rate over time. horizontal lines where the temperature is constant during phase changes connect upward-sloping lines where the temperature increases. horizontal lines where the temperature increases are connected by upward-sloping lines where the temperature is constant for each phase.

Which of the following is always a reactant in a combustion reaction? oxygen nitrogen hydrogen carbon

According to coulomb's law, how would the electrical force between particles change if the product of their electrical charge increased?