subject
Chemistry, 02.02.2020 13:43 janayshas84

The doppler effect indicates that the universe is expanding because
a. light from other galaxies is the same color.
b. light from other galaxies is different colors.
c. light from other galaxies is blue shifted
d. light from other galaxies is red shifted.

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 22.06.2019 06:30
This drawing shows a human body system. what is the primary function of this body system?
Answers: 3
question
Chemistry, 22.06.2019 08:00
What is the standard unit of measure for acceleration?
Answers: 1
question
Chemistry, 22.06.2019 11:40
Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)
Answers: 1
question
Chemistry, 22.06.2019 18:30
How many moles of bromine are needed to produce 3.23 moles of potassium bromide
Answers: 1
You know the right answer?
The doppler effect indicates that the universe is expanding because
a. light from other galax...
Questions
question
Mathematics, 16.04.2020 02:30
question
Mathematics, 16.04.2020 02:30