- Identify the properties of light Waves?

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Suppose that 273g of the substances listed above displaces 26ml of water. What is the substance? Given f(x)=7x^2-3 and g(x)=1-2x find f(g(x)).? One race car has greater acceleration than second race car.But the second race car can reach a higher speed than first.How is this possible? Which substance could you use to demonstrate "morphing" ? Are these substances fluids? For each explain your answer.? Why is a ^ ln b = b ^ ln a?