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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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Physics, 22.06.2019 03:00, mmcdaniels46867
Isla’s change in velocity is 30 m/s, and hazel has the same change in velocity. which best explains why they would have different accelerations? isla had negative acceleration, and hazel had positive. isla had a different time than hazel. isla had positive acceleration, and hazel had negative. isla went a farther distance than hazel.
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Physics, 22.06.2019 11:30, azduce
(2) (a) you have a simple circuit that consists of only a battery (δvbat=1.5v) and two resistors with resistance r1=10ω and r2=5ω, connected in series with each other. what is the current running through the battery? (b) you re-arrange your circuit so now r2 is attached in parallel to r1 rather than in series. what is the current running through the battery? (c) you add an additional resistor r3=7ω on the same branch as r2. what is the current running through the battery? (d) what is the power dissipated in r3?
Answers: 3
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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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