Biology, 21.12.2020 03:40, JessicaSontay8841
In your own words, describe how redshift gives evidence that the stars are moving farther and
faster away from Earth. Include the following words in your explanation light, stars, redshift
wavelength, change, distant.
Answers: 2
Biology, 21.06.2019 20:00, zaratayyibah
Researchers randomly divide participants into groups. each group takes a different amount of omega-3 fatty acid supplements daily for a month. one group receives a placebo. the researchers measure the impact on cholesterol levels in the blood. what is the purpose of random assignment in this experiment? a, to produce treatment groups with similar characteristics b, to ensure that all people with high cholesterol have an equal chance of being selected for the study c, to increase the accuracy of the research results and prevent skewness in the data
Answers: 1
Biology, 21.06.2019 21:30, BigGirlsTheBest
Out of the seven main animal groups (fish, mammals, birds, insects, reptiles, amphibians, and arachnids), how many contain members with internal backbones? a. 5 b. 3 c. 7 d. 1
Answers: 1
Biology, 22.06.2019 05:30, yudayang2012pa9u8p
What is the average speed of a car that traveled 300.0 miles in 5.5 hours
Answers: 1
Biology, 22.06.2019 21:00, hamptonjeleesa
An adult inhales about 6.0Γ10β4 m3 of fresh air during a breath. only 20% of fresh air is oxygen. assume the pressure in the lungs is 1.0Γ105 paand the air is at a temperature of 300 k. how many oxygen molecules are in each breath? a. 1.4x10^23 b. 2.9x10^21 c. 4.9x10^-4 d. 2.9 x10^25
Answers: 2
In your own words, describe how redshift gives evidence that the stars are moving farther and
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