Answers by Bart Jacobs
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Answers by Bart Jacobs

Answers by Bart Jacobs
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Describe the “Doppler Effect.” Explain how it is used in Astronomy in term of red shift and blue shift
answered May 26, 2021
1 vote
142k views
Which racial or ethnic category has the largest number of poor families? Select one: a. white b. Asian c. Hispanic d. African American
answered May 23, 2021
6 votes
28.1k views
Select all that apply. What can we learn about the Shang from their use of bronze? They used it to decipher oracle bones. They developed a way to alloy tin and copper Most of the designs were crude and
answered May 22, 2021
6 votes
4.7k views
What is sympatric speciation?
answered May 17, 2021
3 votes
100k views
We can think of electromagnetic waves as a kind of ongoing message being sent out by the universe. Humans are able to naturally access only a portion of this message. What information from the passage
answered Mar 20, 2021
4 votes
125k views
If you were an adult interested in finding the requirements for a job you wanted, which community resource would you most likely use?
answered Feb 14, 2021
3 votes
157k views
Aibileen says: ""But it weren’t too long before I seen something in me had changed. A bitter seed was planted inside a me"" (p. 3). What was the cause of her bitterness?
answered Jan 25, 2021
0 votes
54.9k views
I need help! Please i need correct answer. (1)There are a number of ways to tell if a person has a drug problem. (2)First, a drug abuser cannot stop using or drinking. (3)Secondly, the person turns into
answered Jan 10, 2020
4 votes
26.5k views
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