Question

enrique is given information about a satellite orbiting earth.
r = 3.8 × 10⁸ m
t = 10 days
in order to calculate the tangential speed of the satellite, what should enrique do first?
∘ convert the radius to kilometers
∘ convert the orbital period to seconds
∘ find the square root of the radius
∘ find the square root of the orbital period

Explanation:

To calculate tangential speed \( v=\frac{2\pi r}{T} \), units must be consistent. The radius \( r \) is in meters, so time \( T \) (given in days) should be converted to seconds (SI unit for time) to ensure consistent units for the speed calculation (meters per second). Converting radius to kilometers is unnecessary, and square - rooting radius or orbital period is not the first step for this formula.

Answer:

B. convert the orbital period to seconds