Answer:
No. No new substance is formed during Physical change.
The answer to is all the information on a line graph is as precise as the information in the data table would be FALSE
Cp stands for specific heat.
we have
work done (W)= force(F) × displacemen(s)
or, 80= F× 8
or, F= 10 N
therefore, 10 N force is required to lift the rock.