### Current Attempt in Progress**(a)** Neil A. Armstrong was the first person to walk on the moon. The distance between the Earth and the moon is \(3.85 \times 10^8\) meters. Find the time it took for his voice to reach the Earth via radio waves. **(b)** Someday a person will walk on Mars, which is \(5.60 \times 10^{10}\) meters from the Earth at the point of closest approach. Determine the minimum time that will be required for a message from Mars to reach the Earth via radio waves.---#### Answer Fields:**(a) Number**: [Input Field] **Units**: [Dropdown]**(b) Number**: [Input Field] **Units**: [Dropdown]

Given:The distance between earth and the moon, r=3.85 × 108 mspeed of the radio waves, c=3×108 m/s

(a) Neil A. Armstrong was the first person to walk on the moon. The distance between the earth and the moon is 3.85 x 108 m. Find the time it took for his voice to reach the earth via radio waves. (b) Someday a person will walk on Mars, which is 5.60 x 1010 m from the earth at the point of closest approach. Determine the minimum time that will be required for a message from Mars to reach the earth via radio waves. (a) Number i Units (b) Number i Units

(a) Neil A. Armstrong was the first person to walk on the moon. The distance between the earth and the moon is 3.85 x 108 m. Find the time it took for his voice to reach the earth via radio waves. (b) Someday a person will walk on Mars, which is 5.60 x 1010 m from the earth at the point of closest approach. Determine the minimum time that will be required for a message from Mars to reach the earth via radio waves. (a) Number i Units (b) Number i Units

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Electromagnetic Waves

Electromagnetic waves are waves that consist of magnetic field and electric field components perpendicular to each other. These field components are also perpendicular to the direction of propagation of the wave.

Question

### Current Attempt in Progress

**(a)** Neil A. Armstrong was the first person to walk on the moon. The distance between the Earth and the moon is \(3.85 \times 10^8\) meters. Find the time it took for his voice to reach the Earth via radio waves.

**(b)** Someday a person will walk on Mars, which is \(5.60 \times 10^{10}\) meters from the Earth at the point of closest approach. Determine the minimum time that will be required for a message from Mars to reach the Earth via radio waves.

---
#### Answer Fields:

**(a) Number**: [Input Field] **Units**: [Dropdown]

**(b) Number**: [Input Field] **Units**: [Dropdown]

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