Launch angle varies from person to person and is dependent on
swing speed and spin rate.
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"Launch" is not an adverb, no.
The word "launch" is a verb ("we will launch it into the air") and sometimes a noun ("the launch pad is broken").
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The Apollo 11 was launched from Cape Kennedy in Florida on
16/7/1969.
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The launch date for the 2015 Hyundai Santro in India will be in
December 2014. The new Santro promises new features, including
better tuner options for satellite radio. The new series also has
more legroom, and better Wi-Fi capabilities.