An 84kg refrigerator is located on the 70th floor of a skyscraper (320 above ground ). Calculate the potential energy 

the simple machine has three main features. they are:

loadfulcrumeffort

fulcrum is the center point or pivot point of the machine. effort is input force/ applied force. load is external force/ output.

the keisha 's machine labels are

x : load

y: fulcrum

z: lever

Honestly "global warming" may be a slight possiblity, however they called it "climate change" because its not real, in fact we had one of our coldest days here not too long ago, and the "issues" with this subject is a blindfold for actual problems.

Hahahah jsu’s hsjshshsh. shjshshshsh.

Ibelieve the answer is b