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
OLga [1]
3 years ago
13

Which of the following methods has led to the earliest discoveries of massive planets orbiting near their parent stars a. detect

ing a planet ejected from a binary star system b. detecting the starlight reflected off the planet c. detecting the gravitational effect of an orbiting planet (The Wobble"") by looking for the Doppler shifts in the star's spectrum d. detecting the infrared light emitted by the planet
Physics
1 answer:
Mrac [35]3 years ago
3 0

Answer:

c. detecting the gravitational effect of an orbiting planet (The Wobble"") by looking for the Doppler shifts in the star's spectrum

Explanation:

In a solar system the mass of the star and planets affect each other's orbital  movements. The center of gravity of a star and a planet is inside the star. This causes the star to be closer and farther from the Earth at different times. Due to this wobble the star appears to be red shifted when it is farther and blue shifted when it is closer.

When the mass of the planet is high, like a hot Jupiter it causes more wobble i.e., change in radial velocity. This makes it easier to detect the planet. The earliest hot Jupiter found by this method is the planet 51 Pegasi b.

You might be interested in
4. A graduated cylinder is used<br>to measure<br>a. volume<br>b. weight<br>d. inertia<br>c. mass​
cestrela7 [59]
The Answer is A. Volume
6 0
2 years ago
What’s a meandering stream?
tatuchka [14]
A meandering stream I think is a tall
6 0
3 years ago
Read 2 more answers
In any system, the _____ in the system remains constant, while the PE or KE may change.
vladimir1956 [14]

Answer:

The sum of PE and KE remains constant

Explanation:

6 0
3 years ago
As part of his job, Warren attends seminars where he must listen to presentations given by experts in his field. When he is list
jeka57 [31]

Answer:

Option (B)

Explanation:

In terms of communication, a receiver is usually referred to as a person who listens, reads as well as observes. In simple words, a receiver is an individual or it can be a group of individuals, to whom any type of message is being diverted. The other name for the receiver is 'audience'.

In the given condition, Warren is attending a seminar in which he is listening to the speaker, as a part of the audience. So, it can be concluded that Warren is a receiver who is receiving information or hearing the speaker.

Thus, the correct answer is option (B).

7 0
3 years ago
What are the order of the 7 prefixes you are required to know in order from largest to smallest
vaieri [72.5K]
10^9 giga, 10^6 mega, 10^3 kilo, 10^-3 milli, 10^-6 micro, 10^-9 nano, 10^-12 pico
Potentially they might want centi which is 10^-2
7 0
3 years ago
Read 2 more answers
Other questions:
  • In a lever, the effort arm is two times as long as the load arm. The resultant force will be
    12·1 answer
  • A wave has a frequency of 46 Hz and a wavelength of 1.7 meters. What is the speed of this wave?
    11·2 answers
  • What is Ohm's Law, and how does it work in real life.
    11·1 answer
  • Help with this question please
    14·1 answer
  • In a normal respiratory cycle the volume of air that moves into and out of the lungs is about 508 mL. The reserve and residual v
    15·2 answers
  • <img src="https://tex.z-dn.net/?f=V%20%3D%20%5Cfrac%7B4%7D%7B3%7D%20%5Cpi%20.r3" id="TexFormula1" title="V = \frac{4}{3} \pi .r3
    11·1 answer
  • a radioactive tracer has a half-life of 2 hours. how much of a 2500g sample will be avalible after 18 hours
    10·1 answer
  • TRUE OR FALSE: some rays of light carry radiation.
    7·2 answers
  • Postural deviations can result in​
    14·1 answer
  • How many lobes are in the lungs
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!