42km = 26.098 miles. Hope this helps.
Answer:
a. each particle of matter vibrates about its normal rest position and along the axis of propagation,
b. Liquids
C. because liquids have the right amount of space between them for the wave to pass through quickly
Explanation:
The answer to the question is a
It banned a poll tax.
Allowing all American Citizens regardless of wealth to vote on federal elections.
