serica0109
Answered

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Please do 7 and 8! giving 5 stars and thanks if right! also its easy! (science) MY FINAL QUESTION FOR TODAY! please help!

Please Do 7 And 8 Giving 5 Stars And Thanks If Right Also Its Easy Science MY FINAL QUESTION FOR TODAY Please Help class=

Sagot :

priyodiptobasak

Explanation:

7. density₁ (ρ₁ ) = m₁ /V₁ = 45/15 = 3 g/cm³.

density₂ (ρ₂ ) = m₂ /V₂ = 60/30 = 2g/cm³.

the rock 1 is more dense than rock 2.

rock 2 is less dense.

8. density of lava = mass of lava / volume of lava

= 400/100 = 4g/mL (1mL = 1cm³) = 4g/cm³.

the above rocks will float over lava.

Hope this helps you.

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