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
user100 [1]
3 years ago
11

Infrared observations of the orbits of stars close to the galactic center indicate a small object at the center with a mass of a

bout how many solar masses?
Physics
1 answer:
MariettaO [177]3 years ago
5 0

Answer:

(4.31±0.38) million Solar masses.

Explanation:

The galactic center is the center of the milky way around which the galaxy rotates. It is most likely the location of a supermassive black hole which has a mass of (4.31±0.38) million Solar masses. The location is called Sagittarius A*.

As there is interstellar dust in our line of sight from the Earth infrared observations need to be taken.

You might be interested in
10. In Freudian theory, which one of the following is an example of a Thanatos instinct, which includes aggression, trauma, and
Lelechka [254]
D substance abuse :) hope this helps
8 0
2 years ago
The value of a scientific variable ____. A) can change
gregori [183]
The answer is A: can change
5 0
2 years ago
Read 2 more answers
Plz help idk and it's due tomorrow
____ [38]
1) G. The continents are now farther apart. 2) A. P waves. They usually travel 60% faster than S waves. 3) H. A hot spot caused the Hawaiian Islands to form.
7 0
3 years ago
Read 2 more answers
The starter motor of a car engine draws a current of 140A from the battery. The copper wire to the motor runs for 0.90s until th
nasty-shy [4]
"1 Ampere" (A) means "1 coulomb of charge per second"

140 A means 140 coulombs per second

(140 coulomb/sec) x (0.9 sec)  =  126 coulombs of charge.


Go a little farther:

Electrons are the things that move through wire carrying charge.

6.25 x 10¹⁸ electrons carry 1 coulomb of charge. 

126 coulombs = 787,500,000,000,000,000,000 electrons (rounded)
8 0
2 years ago
If the frequency of wave is 400 Hz and its wavelength is 2.5 m,<br> what is the velocity?
BigorU [14]
1000 m/s

You have the wavelength and frequency, you just need to solve for velocity. You can do this by multiplying each side of the equation by frequency.
6 0
2 years ago
Other questions:
  • Which phrase best describes the outer planets?
    5·2 answers
  • If you walk 1.2 km north and then 1.6 km east, what are the magnitude and direction of your resultant displacement?
    13·1 answer
  • Doctor prescribed drug which is 500mg for patient change this unit into gram
    6·1 answer
  • How much kinetic energy does a proton gain if it is accelerated, with no friction, through a potential difference of 1.00 V? The
    15·1 answer
  • A car covers 72 kilometers in the first hour of its journey. In the next hour, it covers 90 kilometers. What is the amount of wo
    14·1 answer
  • A student is pedaling a stationary bicycle at the U of M Rec Center. Her alveolar PO2 = 115 mm Hg and her oxygen consumption is
    7·1 answer
  • Please help me with my quiz?
    9·1 answer
  • Which of the following is a key component of the U.S. Space Shuttle program?
    9·2 answers
  • Kinetic energy and mass are ________ proportional.
    7·2 answers
  • 1. Predict whether the energy required to remove an electron from magnesium and potassium would be more or less than that requir
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!