Question
One nautical mile is $6080 \mathrm{ft}$. The same in kilometre is:(a) $0.9 \mathrm{~km}$(b) $0.8 \mathrm{~km}$(c) $1.85 \mathrm{~km}$(d) none of these
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At sea, distances are measured in nautical miles and speeds are expressed in knots. $$ \begin{aligned} &1 \text { nautical mile }=6076.12 \mathrm{ft}\\ &1 \mathrm{knot}=1 \text { nautical mi/h (exactly) } \end{aligned} $$ (a) How many miles are in one nautical mile? (b) How many meters are in one nautical mile? (c) A ship is traveling at a rate of 22 knots. Express the ship's speed in miles per hour.
At sea, distances are measured in nautical miles and speeds are ex- pressed in knots. $$ \begin{aligned} &1 \text { nautical mile }=6076.12 \mathrm{ft}\\ &1 \mathrm{knot}=1 \text { nautical } \mathrm{mi} / \mathrm{h} \text { (exactly) } \end{aligned} $$ (a) How many miles are in one nautical mile? (b) How many meters are in one nautical mile? (c) A ship is traveling at a rate of 22 knots. Express the ship's speed in miles per hour.
Nautical miles Refer to Exercise $37 .$ If angle $A C B$ has measure $1^{\prime}$, then the distance between $A$ and $B$ is a nautical mile. Approximate the number of land (statute) miles in a nautical mile.
The Trigonometric Functions
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