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Physics, 03.02.2020 09:49, brittanyjacob8
How do scientists use the doppler effect to understand the universe?
a. to determine motion of objects.
b. to determine the ages of planets
c. to determine the planet.
what does a blue shift in the light from stars indicate?
a. the stars are moving randomly
b. the stars are stationary
c. the stars are moving closer (towards each other)
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Answers: 3
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Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 2 options: the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the cold balloon expands and rises. the warm balloon shrinks and sinks. the warm balloon expands and rises. the cold balloon shrinks and sinks.
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How do scientists use the doppler effect to understand the universe?
a. to determine mo...
a. to determine mo...
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