How can astronomers tell what a distant object's velocity is?
A by measuring the redshift or blueshift of the object
B by looking for particular lines in its spectrum
C by the frequency of the electromagnetic radiation it gives off
D by timing how long it takes light to reach the object and return
it is A
Answers (1)
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “How can astronomers tell what a distant object's velocity is? A by measuring the redshift or blueshift of the object B by looking for ...” in 📙 Biology if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers
You Might be Interested in
Which of the following is not one of Darwin's ideas concerning evolution
Answers (1)
Which numbered arrow represents the promoter for RNA II. RNA II serves as the primer for DNA synthesis for plasmid replication. (The two fat arrows, blue (number 1) and red (number 4), represent promoters.). a. 3. b. 4. c. 1. d. 2.
Answers (1)
Name at least 4 gases in the atmosphere besides oxygen and nitrogen
Answers (2)
Which of the following is the region where the respiratory path has to cross the digestive pathway?
Answers (1)
Elephants and rhinos tolerate the small birds that ride their backs and eat insects on their skin. the relationship between the elephants and the birds is called
Answers (1)
New Questions in Biology
Pollution stays in the area where it is produced. a. True b. False
Answers (1)
A male tree frog migrates to a new habitat with little ground vegetation and many tall trees. Jumping is the safest way for the frog to move from tree to tree.
Answers (1)
Select the correct answer. Neurofibromatosis, a genetic disease caused by mutation on the NF1 gene, follows an autosomal dominant pattern of inheritance.
Answers (1)
Which of the following is NOT a way a cell can increase its surface area A. decrease its volume B. add organelles C. let water out of the cell D. all of the above
Answers (2)
Using a pH meter, you find that egg whites have a pH of nearly 8 and egg yolks have a pH near 6, if litmus paper turns blue in bases and red in acids, which part of eggs would turn litmus paper blue? A. both B. egg whites C. egg yolks D. neither
Answers (1)