8: As a grade-school project, students construct a mobile representing some of the major food groups.
1 answer:
Answer:
m1=0.72kg m2=0.48kg m3=0.98
Explanation:
12*m1=18*m2, so 2*m1=3*m2
6*(m1+m2)=24*.03, so 2*m1+2*m2=2.4
so, 5*m2=2.4, m2=0.48 then, m1=0.72
(m1+m2+0.3+0.2)*18=31*m3
1.7*18=31*m3
m3=0.98
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Can i have more information?
Because they are caused by your exercise
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Answer:
I'd say C is the answer they want, though my pedantic side wants to argue for B being true as well.
Air resistance is the answer
