Match the person or item with the correct description. Atomic model contained a sphere of positive charge with negatively charged electrons within it.
Oa. Aristotle
Ob. Thomson
Oc. Bohr
Od. Rutherford
Oe. Chadwick
Of. Democritus
Og. Dalton

The answer would be a) -80of

Sorry i don’t know what to do

If the heat engine is a perfect carnot cycle engine, thenefficiency = (t2-t1)/t2   where t1=temperature of cold reservoir ( ° k) = 135            t2=temperature of hot reservoir ( ° k)   = 325thereforeefficiency = (t2-t1)/t2 = (325-135)/325 = 0.5846 = 58%  note: this is the theoretical maximum efficiency of a perfect heat engine.   real-life engines do not achieve this value.

Wow good luck with that answer