b. joules
c. pounds
d. newtons
Which of these is the unit of measure for work?
B. Joules
Answer:
chlorine is a non-metal.
Explanation:
a chlorine atom has 7 electrons in its outer shell. chlorine is in group 7 of the periodic table. two chlorine atoms will each share one electron to get a full outer shell and form a stable cl2 molecule.
Efficiency of a machine is defined as the ratio of work performed on it to work performed by it.
Efficiency = Output energy/ Input energy
The percentage value of efficiency of a machine is calculated as:
Efficiency = (Output energy/ Input energy) X 100%
Learn more about the machine efficiency with the help of the given link:
#SPJ2
B. a way to determine what is the best deal
C. the average value exchange of a single good or service
D. a monetary rate that stays constant
Answer:
The best sentence to define "medium of exchange" is:
A. something with a fixed value that we use for exchange
Explanation:
The medium of exchange is the concept to name the tool we use as a medium to exchange different products with the intention o reaching an objective agreement. To achieve this, the medium of exchange has to have a general value and even when its value can increase or decrease based on the economical conditions of the environment it is adaptative and will always behave in a proportional ratio.
Oh, I just realized you asked for a body part, and there is only one body part in the circulatory system, my bad. That would be the heart. But, it also contains veins, arteries, capillaries, and blood. It's main function to pump blood to supply oxygen to the body.
Hope this helps!