subject
Physics, 09.11.2019 03:31 demetriascott20

Which of the following statements about stellar parallax is true?
- the amount of parallax we see depends on how fast a star is moving relative to us.
- the closer a star is to us, the more parallax it exhibits.
- it takes at least 10 years of observation to measure a star's parallax.
- we observe all stars to exhibit at least a slight amount of parallax.
- stellar parallax was first observed by ancient greek astronomers.

ansver
Answers: 3

Other questions on the subject: Physics

image
Physics, 21.06.2019 22:00, Iron2841
Animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. reactivate d) a dog is getting hot in the sunlight, so he moves to a shaded area.
Answers: 2
image
Physics, 22.06.2019 12:40, FombafTejanjr7503
Estimate the schwarzschild radius (in kilometers) for a mini-black hole formed when a superadvanced civilization decides to punish you (unfairly) by squeezing you until you become so small that you disappear inside your own event horizon. (assume that the your weight is 50 kg)
Answers: 1
image
Physics, 22.06.2019 14:40, hastephens03
According to valence bond theory, which orbitals overlap in the formation of the bond in hf according to valence bond theory, which orbitals overlap in the formation of the bond in hf 2s on h and 2p on f 1s on h and 2s on f 1s on h and 1p on f 1s on h and 2p on f 1s on h and 3p on f
Answers: 3
image
Physics, 22.06.2019 16:40, byers024
Atriangle with equal sides of length 10 cm has -2.5-nc charged objects at each corner. part a determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. horizontally rightward vertically downward vertically upward horizontally leftward
Answers: 1
You know the right answer?
Which of the following statements about stellar parallax is true?
- the amount of parallax w...

Questions in other subjects:

Konu
English, 06.05.2020 07:03
Konu
Law, 06.05.2020 07:03