A Space Rocket Is Launched Such That Very Far from Earth

question 14

Multiple Choice

A space rocket is launched such that very far from Earth it has a speed of 20 km/s.What was its initial launch speed from the surface of Earth? (R_E = 6.38 $\times$ 10⁶ m,M_E = 5.98 $\times$ 10²⁴ kg,G = 6.67 $\times$ 10^-11 N·m²/kg²)

• A)22.9 km/s
• B)20.0 km/s
• C)45.8 km/s
• D)21.5 km/s
• E)25.5 km/s

---

Definitions:

Upward Sloping

Describes a line or curve on a graph that moves higher as it goes from left to right, indicating a positive relationship between two variables.

Equilibrium Price

The market price at which the quantity of goods supplied equals the quantity of goods demanded.

Legal Services

Professional services provided by lawyers or attorneys to help individuals, businesses, or organizations with legal issues.

Pollution Tax

A levy imposed on the emission or discharge of pollutants, intended to internalize the externality costs of pollution.