What were some Americans afraid of as a result of the Soviet Sputnik launch?

Explanation:

Sputnik was the first man made satellite to orbit the Earth. This satellite was launched by the Soviet Union during the 1950's. This new capability worried American citizens and the government, as they feared this advancement in technology would give the Soviet Union an advantage if the US was to go to war with them.

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the answer is: must pay taxes on profits

since it is considered as a part of your income, profits from investments is eligible for tax payment.

the tax from your investment could be influenced by how long you decided to sell it. united states promotes keeping your investment for long term period. so, the tax rate for investments that you sell in less than one year is typically higher compared to investments that you sell in more than one year period.