In the Doppler effect, a redshift of spectral lines shows us the source is receding from us

Indicate whether the statement is true or false


TRUE

Physics & Space Science

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Identify the FALSE statement. Stars:

create elements by fusing the nuclei of small atoms into the nuclei of larger atoms. have limited amounts of fuel and therefore don't exist forever. all explode cataclysmically when they die and contribute their matter to future star generations. that are the size of our Sun will burn for about 10 billion years. begin as protostars, which fire up when they collapse and become denser and hotter.

Physics & Space Science

Power: When 5.00 A is flowing through an 10.0-? device, how much power is being dissipated in the device?

A. 50.0 W B. 250 W C. 500 W D. 2.50 kW

Physics & Space Science

How did scientists first prove that light had a finite speed?

a. By measuring how long it takes for a second observer to be seen uncovering a lantern on a distant mountain in response to the first observer uncovering a lantern. b. By measuring how long it took to see lightning during a thunderstorm. c. By measuring how fast a notched wheel must rotate for light passing through one notch to be reflected from a distant mirror back through the next notch. d. By measuring how fast a multi-faced mirror must rotate for light reflected from one mirror face to be reflected from a distant mirror to reflect back from the next face. e. By measuring how the revolution of the moons of Jupiter appears longer when they are farther from Earth.

Physics & Space Science

The clouds of Mars consist mainly of frozen carbon dioxide and frozen water.

Answer the following statement true (T) or false (F)

Physics & Space Science