24. When a wave passes through a medium, the material may be displaced or excited. What happens to the material after the wave has passed?The material remains in its new position or excited state. A The material is destroyed when the wave passes.
B. The material attaches to and travels with the wave.
C. The material returns to its original position or state.

the expression 15n + 2(3p) represents the amount isaiah spent buying gasoline and snacks, where n represents the price of each gallon of gasoline and p represents the cost of each snack that he bought. which statement is true about the amount isaiah spent?

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.

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