While preparing its budget for the next fiscal year, NASA wants to report to the

ID: 3896205 • Letter: W

Question

While preparing its budget for the next fiscal year, NASA wants to report to the nation a rough estimate of the cost (per kilogram) of launching a modern satellite into near-Earth orbit. You are chosen for this task, because you know both physics and accounting.

(a) Determine the energy, in kW·h, necessary to place a 1.0-kg object in low-Earth orbit. In low-Earth orbit, the height of the object above the surface of Earth is much smaller than Earth's radius. Take the orbital height to be 370 km. (For near-earth orbit, use the approximation that r = REarth.)

(b) If this energy can be obtained at a typical electrical energy rate of $0.15 / kW·h, what is the minimum cost of launching a 355 kg satellite into low-Earth orbit? Neglect any effects due to air resistance.

I only can't figure out how to do part b.

Explanation / Answer

for part b multiply answer of part a with 355*(0.15)....

because multtiplying by 355 will give energy for launching 355 kg of satellite and multiplying by 0.15 will give total cost

Navigate

While preparing its budget for the next fiscal year, NASA wants to report to the

While preparing its budget for the next fiscal year, NASA wants toreport to the

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.

While preparing its budget for the next fiscal year, NASA wants to report to the

Question

Explanation / Answer

Related Questions

Navigate