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Question 7 (1 point) Light travels at c = 299792458 m/s in a vacuum. The formula for determining the speed of light in a medium is v = cfn. If n in a vacuum is 1.00000, and n in airis 1.00029, what velocity should we be using for the speed of light in everyday problems? .j' j; 3.00 x was m/s 2.99 x 10"8 m/s 2.98 x 10"8 m/s .3: 2.97 x 10"8 me Question 8 (1 point) "Nothing travels faster than the speed of light" Is this a true statement? To help, consider the following: Light travels at c = 299792458 m/s in a vacuum. The formula for determining the speed of light in a medium is v = cfn. If n in a water is 1.33, what velocity does light travel in water? A neutrino travels at 299,338,000 m/s. It is so small,and uncharged it can dart between atoms unaffected, so it is not slowed when travelling through water. True False Question 9 (1 point) Nothing travels faster than the speed of light in a vacuum. / l True \\ / .i False \\