A Distant Space Probe Is Programmed to Emit a Radio

question 58

Multiple Choice

A distant space probe is programmed to emit a radio signal toward Earth at regular time intervals. One such pulse arrives on Earth 6.92 s after it is emitted from the probe. What is the approximate distance from the Earth to the probe?

• A)8.76 × 10⁹ m
• B)7.40 × 10¹⁰ m
• C)6.94 × 10⁹ m
• D)2.08 × 10⁹ m
• E)3.50 × 10¹⁰ m