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
frozen [14]
3 years ago
8

What leads astronomers to believe that some large moons associated with the giant planets have compositions that are roughly hal

f water?
Physics
1 answer:
Sonja [21]3 years ago
8 0
<span>Astronomers are able to determine facts about the composition of these moons by examining the nature of light that is reflected from their surfacy using a method called spectroscopy. This process works because different materials tend to reflect light at different wavelengths So, by observing at which wavelengths a planetary body reflects light, astronomers are able to estimate its composition.</span>
You might be interested in
What is the main difference between protons and neutrons?
Studentka2010 [4]
Protons have a positive energy charge, while neutrons have a neutral charge
4 0
3 years ago
Read 2 more answers
Can someone help me please
enyata [817]

Answer:

I think its distance

Explanation:

when measuring how far a p.o art u can use mm

3 0
3 years ago
Read 2 more answers
Wilbur ran 1-kilometer. Then he ran 500 meters. How many meters did Wilbur run all together?
Blababa [14]
The answer is B 1,500 meters since 1 kilometer to meters is 1,000 and u add the 500
8 0
3 years ago
Name one benefit and one limitation of Comparative investigations
GalinKa [24]
Comparative investigation is a research method that makes comparison across different countries of the world. Limitation : data set in different countries may be defined differently. Benefit : the method is flexible.
8 0
3 years ago
Read 2 more answers
Vector vector a has a magnitude of 29 units and points in the positive y-direction. when vector vector b is added to vector a ,
Nutka1998 [239]
Good morning.

We have:

\mathsf{\overset{\to}{a} = 29\overset{\to}{j}}

Where j is the unitary vector in the direction of the y-axis.

We have that 

\mathsf{\overset{\to}{a}+\overset{\to}{b} = -18\overset{\to}{j}}

We add the vector -a to both sides:

\mathsf{\overset{\to}{b} = -18\overset{\to}{j} -\overset{\to}{a} = -18\overset{\to}{j} -29\overset{\to}{j}}\\ \\ \mathsf{\overset{\to}{b}=-47\overset{\to}{j}}


Therefore, the magnitude of b is 47 units.
5 0
3 years ago
Read 2 more answers
Other questions:
  • vA child is in danger of drowning in the Merimac river. The Merimac river has a current of 3.1 km/hr to the east. The child is 0
    5·1 answer
  • He discovered that the orbits of planets are ellipses.
    13·2 answers
  • A child on a sled starts from rest at the top of a 15.0° slope. If the trip to the bottom takes 22.6 s how long is the slope? As
    11·1 answer
  • The flywheel of a motor has a mass of 300.0 kg and a radius of 55 cm. If the motor can exert a torque of 2000.0 N . m on this fl
    15·1 answer
  • you’ve just been involved in a traffic accident that leaves you stranded on the side of the road. Which part of the EM spectrum
    14·1 answer
  • A body with an initial velocity of 10m/s has an acceleration of 8m/s^2. Determine graphically the velocity after 5 seconds, &amp
    9·1 answer
  • At
    8·1 answer
  • Describe friction force (Ffr) in your own words
    10·1 answer
  • A boy is swinging a toy on a piece of string in a vertical circle. The toy has a mass of 150 g and the radius of the circle is 0
    11·1 answer
  • ONLY ANSWER IF YOU KNOW FOR SURE PLEASE :)
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!