all Verizon 10:06 PM d21.arizona.edu c @ * 16% 9. A sample of substance A weighs

Question

all Verizon 10:06 PM d21.arizona.edu c @ * 16% 9. A sample of substance A weighs 5 lbs. A sample of substance B weighs 10 lbs. Which of the following statements HAS TO BE TRUE? a) Sample A is more dense than sample B b) Sample B is more dense than sample A c) Sample A and B could have the same density if sample A is larger. d) Sample A and B could have the same density if sample B is larger. Explain in your own words: 10. The density of water is 1 g/cm. Which of the following would float in water and which would sink? a) Mercury (density 5.4 g/cm) Float g/cm) Float g/cm) Float Sink Cannot say b) Table salt (density 2.16 Sink Cannot say c) Olive oil (density 0.98 Sink Cannot say 11. The human body has a density close to l g/cm. Is it easier for humans to float in salt water or fresh water? Explain your reasoning.

Explanation / Answer

9) Both Samp-le A & b could have same density if B is larger , Because density is mass / volume . and A is lighter than B . So to be the same density B should be larger then ration will be equal.

10) Mercury and salt will sink because they have higher dense than water and olive oil will float due to less dense

11) Human body can float above salt water because it has higher density than body

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