Electromagnetic waves take (choose the best description): O days to cross our solar system and hundreds of years to cross our galaxy. O hours to cross our solar system and tens of thousands of years to cross our galaxy. O hours to cross our solar system and thousands of years to cross our galaxy. O minutes to cross our solar system and years to cross our galaxy. O minutes to cross our solar system and hundreds of years to cross our galaxy.

Electromagnetic waves take (choose the best description): O days to cross our solar system and hundreds of years to cross our galaxy. O hours to cross our solar system and tens of thousands of years to cross our galaxy. O hours to cross our solar system and thousands of years to cross our galaxy. O minutes to cross our solar system and years to cross our galaxy. O minutes to cross our solar system and hundreds of years to cross our galaxy.

Foundations of Astronomy (MindTap Course List)

14th Edition

ISBN:9781337399920

Author:Michael A. Seeds, Dana Backman

Publisher:Michael A. Seeds, Dana Backman

Chapter25: Astrobiology: Life On Other Worlds

Section: Chapter Questions

Problem 9P: The first radio broadcast was made on January 13, 1910. It was a live performance at New York Citys...

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a.) Galaxy B moves away from galaxy A at 0.521 times the speed of light. Galaxy C moves away from galaxy B in the same direction at 0.715 times the speed of light. How fast does galaxy C recede from galaxy A? Express your answer as a fraction of the speed of light. b.) Processes at the center of a nearby galaxy cause the emission of electromagnetic radiation at a frequency of 2.71×10^13 Hz. Detectors on Earth measure the frequency of this radiation as 1.69×10^13 Hz. How fast is the galaxy receding from Earth?
Which of the following statements are true about light waves? O The shorter the wavelength, the higher the frequency. O The lower the frequency, the shorter the wavelength. O The lower the frequency, the longer the wavelength. O The higher the frequency, the longer the wavelength. O Higher frequency light travels faster than lower frequency light.
A local radio station broadcasts radio waves at 99.7 MHz. Unlike sound, radio waves can pass into outer space, because they are disturbances not in air molecules but in the e-m fields that exist even in the vacuum of space. It's energy traveling independent of matter. a. When that radio wave hits you, how many pulses (wave crests) of em radiation hit you per minute (60 seconds)? (reminder: M = 10 6) b. Radio waves move at the speed of light (c), how far apart is each wave crest (wavelength)? c. If we boosted the signal strength so that station could be heard on the moon, would either the wavelength or frequency change?
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The radio waves that travel through the air to our car/truck/home radios are just another type of light. Let's say that your favorite radio station is 87.9 on the FM dial. That means that those radio waves have a frequency of 87.9 MHz. (a) What are the wavelength of those radio waves? (b) How fast would these radio waves travel through water?
Calculate the speed of a radio wave traveling through space if it has a wavelength of 6.35 cm. Please use correct scientific notation when appropriate and use the following format with correct units!! ...... 4.2x10^-14 Hz.
The first radio broadcast was made on January 13, 1910. It was a live performance at New York Citys Metropolitan Opera House. Since that time, how far has that radio broadcast traveled in light-years? In the solar neighborhood there is, on average, one star system per 400 cubic light-years. How many star systems could have heard those opera singers? (Note: The volume of a sphere = 43r3.)
Since 1995, hundreds of extrasolar planets have been discovered. There is the exciting possibility that there is life on one or more of these planets. To support life similar to that on the Earth, the planet must have liquid water. For an Earth-like planet orbiting a star like the Sun, this requirement means that the planet must be within a habitable zone of 0.9 AU to 1.4 AU from the star. The semimajor axis of an extrasolar planet is inferred from its period. What range in periods corresponds to the habitable zone for an Earth-like Planet orbiting a Sun-like star?
Assume that when I was 30 years old, I invented a spaceship capable of traveling at 95% of the speed of light, and take off to survey a peculiar infrared star 10 light years from earth. My daughter is 2 years old when I leave earth. I calculate that I age 20 years on my mission. A. while traveling to the star at 95% of the speed of light, I measure the wavelength of its light at 450 nm. What is the actual wavelength of the star's light? B. I turn around and head back to earth at 95% of the speed of light. WHat is the wavelength I see and I move away from the star? C. From my daughter prespective, how old is she when I return?
Electromagnetic radiation is more common than you might expect. Radio and TV stations emit radio waves as they broadcast their programs; microwaves cook your food in a microwave oven; conventional ovens and stoves emit infrared and slightly visible radiation; dentists use X rays to check your teeth; and cell phones operate using microwaves as well, but at a lower frequency than microwave ovens. Even though they have different names and different applications, these types of radiation are really all the same thing: electromagnetic (EM) waves - energy that travels in the form of oscillating electric and magnetic fields. Which of the following statements correctly describe the various applications listed above? Check all that apply. ► View Available Hint(s) None of these technologies use radio waves. None of these technologies use lower-frequency microwaves. None of these technologies use higher-frequency microwaves. None of these technologies use infrared waves. The radiation emitted by…
Electromagnetic radiation is more common than you might expect. Radio and TV stations emit radio waves as they broadcast their programs; microwaves cook your food in a microwave oven; conventional ovens and stoves emit infrared and slightly visible radiation; dentists use X rays to check your teeth; and cell phones operate using microwaves as well, but at a lower frequency than microwave ovens. Even though they have different names and different applications, these types of radiation are really all the same thing: electromagnetic (EM) waves- energy that travels in the form of oscillating electric and magnetic fields. Part B Which of the following statements correctly describe the various applications listed above? Check all that apply. ► View Available Hint(s) None of these technologies use radio waves. None of these technologies use lower-frequency microwaves. None of these technologies use higher-frequency microwaves. None of these technologies use infrared waves. The radiation…