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What would the difference of spectral lines emitted by hydrogen gas in distant galaxies which is normally found at a wavelength of 21 cm on earth, be observed at 21.1 centimeters?
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Need asap โผ๏ธ 20 pts which gravitational force field diagram is drawn correctly? (answers in pictures below)
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Physics, 22.06.2019 09:30
The graph represents the distance a car travels over time while on the highway. which statement about the car's trip is accurate? a) the car does not move over time. b) the car travels at a constant velocity. c) the car's velocity increases constantly over time. d) the car's velocity decreases constantly over time.
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Physics, 22.06.2019 14:10
Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to:
Answers: 3
1) A person walks 15 feet to the left, and then 15 feet to the right. What is the person's
DISTANC...
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