1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Tanya [424]
4 years ago
11

If a star has no measurable parallax, what can you infer?

Physics
2 answers:
salantis [7]4 years ago
6 0

Answer:

If you can't measure the parallax that means that the star is far far away, beyond all possible reach of humanity with its current technology. The closer the star is the greater the parallax, so you either get a bigger, more powerful telescope, or you just accept that it's too far away to be measured at all. Eventually the technology will develop enough to measure it.

AnnZ [28]4 years ago
5 0
The star is FARTHER from Earth than the limit of our ability to measure parallax.

The NEAREST star outside the solar system has a parallax angle of 0.742 SECOND. That's like 0.000206 of a degree ! ALL other stars have SMALLER parallax.

I have no idea how they measure angles like these ... especially when the change in direction takes six months to happen !
You might be interested in
What is the acceleration due to gravity at an altitude of 116?
Schach [20]
Gravitational acceleration (Ga) is  inversely proportional to  k / Distance^2

so Ga * Distance^2 = K

On the surface of Earth acceleration due to gravity is about 9.8m/s^2 with an average distance to the earths core of about 6371 km (Wolfram alpha).

So k = 9.8 * 6371^2
I'm presuming that your distance of 116 is km

As 
Ga = k / distance^2 

Ga = ((9.8 * 6371^2) / (6371 + 116)^2 ) = 397778481.8 / 42081169

= 9.45 m/s^2 to 2sf
7 0
4 years ago
A system dissipates 12 J of heat into the surroundings; meanwhile, 28 J of work is done on the system. What is the change of the
timurjin [86]

Answer:

option C

Explanation:

given,

energy dissipated by the system to the surrounding = 12 J

Work done on the system = 28 J

change in internal energy of the system

Δ U = Q - W

system losses energy = - 12 J

work done = -28 J

Δ U = Q - W

Δ U = -12 -(-28)

Δ U = 16 J

hence, the correct answer is option C

6 0
3 years ago
How does social theory learning impact on children​
Allushta [10]

Explanation:

Social learning is a hypothesis of learning cycle and social conduct which suggests that new practices can be procured by noticing and copying others. This impacts children because they do things they do not want to.

5 0
3 years ago
River water held behind a dam is a form of ________. group of answer choices
WINSTONCH [101]

Potential energy is present in the river water behind a dam.

<h3>How is potential energy defined?</h3>
  • Potential energy is a form of stored energy that is dependent on the relationship between different system components.
  • When a spring is compressed or stretched, its potential energy increases.
  • If a steel ball is raised above the ground as opposed to falling to the ground, it has more potential energy.
  • The object's mass, its mass in relation to some reference points, and the gravitational field it is in all affect the potential energy of the object.
  • Joule is the SI unit of potential energy as a result (J)
  • As weight and height increase, gravitational potential energy rises.

learn more about Potential energy here

brainly.com/question/13997830

#SPJ4

8 0
2 years ago
Please help with this
sertanlavr [38]

Answer:I have to say 56

Explanation: because it is going up by 8

6 0
3 years ago
Other questions:
  • A motorbike travels 45 miles in 15 minutes, what is its speed (hint change the minutes to hours!!)
    9·1 answer
  • The mechanical advantage of the lever is
    8·1 answer
  • Plzzzz help me with this!!!!?????
    11·2 answers
  • A 2.50 m length of wire is held in an east–west direction and moves horizontally to the north with a speed of 15.6 m/s. the vert
    9·1 answer
  • A rock found in a belt, originates between mars and jupiter what is it
    6·1 answer
  • A fully loaded, slow-moving freight elevator has a cab with a total mass of 1400 kg, which is required to travel upward 37 m in
    12·1 answer
  • What is the magnitude of vector K ?
    14·1 answer
  • If the frequencies of two component waves are 24 Hz and 20 Hz, they should produce _______ beats per second.
    11·2 answers
  • Explain why heating destroys the magnetism in a permanent magnet?​
    8·2 answers
  • Two point charges are separated by 6.4 cm . The attractive force between them is 10 N . Suppose that the charges attracting each
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!