Answer:
1. Main Sequence - middle life 17
2. red
3. blue
4. White dwarf stars are much hotter than Red Supergiants 15. List the color of the stars from hottest to coldest: Blue, White, Yellow, Orange, Red 16.
5. red giants
Explanation:
Main sequence stars have a Morgan-Keenan luminosity class labeled V. red giant and supergiant stars (luminosity classes I through III) occupy the region above the main sequence. They have low surface temperatures and high luminosities which, according to the Stefan-Boltzmann law, means they also have large radii. White dwarf stars are much hotter than Red Supergiants 15. List the color of the stars from hottest to coldest: Blue, White, Yellow, Orange, Red 16. The hottest stars are the blue stars. A star appears blue once its surface temperature gets above 10,000 Kelvin, or so, a star will appear blue to our eyes. The lowest temperature stars are red while the hottest stars are blue. Astronomers are able to measure the temperatures of the surfaces of stars by comparing their spectra to the spectrum of a black body. Most stars, including the sun, are "main sequence stars," fueled by nuclear fusion converting hydrogen into helium. ...
As stars begin to die, they become giants and supergiants (above the main sequence).
to prove
please answer if you know
otherwise don't give
Answer:
this is your answer look it once
PLZ ANSWER ASAP!!
( please)
AYOO I NEED HELP plz
Answer:
1D
2C
3C
4C
5D
6D
7D
8D
9B
Explanation:
better give me points X﹏X
Answer:
1) D
2) C
3) D
4) C
5) D
6) D
7) D
8) D
9) B
Take these answers with a grain of salt.
PLEASE HELP!! DUE SOON!!!
Which of the following would be considered an excellent source of vitamins?
A. yellow squash
B. milk
C. kidney beans
D. all responses are correct
I need number two only
Answer:
d: ice is less dense than liquid water.
Explanation:
hope this helps! ( brainliest would be appreciated :)
~mina
In a recent hockey game, one player (m=100kg) was moving at a velocity of 8 m/s when he ran into another player (m=300kg) who was at rest (v=0m/s). After the collision, the two players were stuck together (moving with the same velocity). What was their velocity after the collision?
Their velocity after the collision was 2 m/s.
What is principle of conservation of momentum?
According to the principle of momentum conservation, momentum is only modified by the action of forces as they are outlined by Newton's equations of motion; momentum is never created nor destroyed inside a problem domain.
Given parameters:
one player (m=100kg) was moving at a velocity of 8 m/s initially.
Another player (m=300kg) who was at rest (v=0m/s) initially.
After collision they stuck together and let the velocity of them is v.
According to principle of conservation of momentum, total momentum remains conserved.
total initial momentum = total final momentum
100×8 + 300×0 = (100 + 300)v
400v = 800
v = 2.
Hence, their velocity after the collision was 2 m/s.
Learn more about momentum here:
https://brainly.com/question/24030570
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The pressure of a cylinder with the following dimensions: radius 13.9 cm and height 34 cm; has a pressure of 172.9 kPa. If the pressure is reduced to 1.75 atm, what will be the volume of the gas inside the cylinder?
Answer:Experience has shown that several properties of a gas can be related to each other under certain conditions. The properties are pressure (P), volume (V), temperature (T, in kelvins), and amount of material expressed in moles (n). What we find is that a sample of gas cannot have any random values for these properties. Instead, only certain values, dictated by some simple mathematical relationships, will occur.
Explanation:
What is the cause of most waves and how can this change waves' characteristics?
There are three main factors that affect wave formation: wind velocity, fetch, and duration.
Waves are most commonly caused by wind. Wind-driven waves, or surface waves, are created by the friction between wind and surface water. As wind blows across the surface of the ocean or a lake, the continual disturbance creates a wave crest.
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Answer:
Hold on Ill answer it..When do u need it by
Explanation:
Answer:
the answer is A
Explanation:
the industrial society and its revolution
Earth's subsystems are the geosphere, atmosphere, hydrosphere, and biosphere. Energy and matter are transferred when Earth's subsystems interact.
Describe which of Earth's subsystems are involved when a hurricane passes through an area. Explain how these different subsystems affect one another.
Answer:
ok
Explanation:
The Earth is made of several subsystems or "spheres" that interact to form a complex and continuously changing whole called the Earth system. Scale
Processes operating in the Earth system take place on spatial scales varying from fractions of millimeters to thousands of kilometers, and on time scales that range from milliseconds to billions of years.
Examples of instantaneous - breathing; rotation of the Earth; earthquake
Examples of long term - making coal; plate tectonics
Cycles
The Earth system is characterized by numerous overlapping cycles in which matter is recycled over and over again. Cycles involve multiple spheres and systems interactions.
Examples of cycles: day and night; rock cycle; seasons
Energy
The Earth system is powered by energy from two major sources: the Sun and the planet's internal heat.
Humans and the Earth System
People are part of the Earth system and they impact and are impacted by its materials and processes.
A negative charge of -4.0 x 10 -6 C and a positive charge of 7.0 x 10 -5 C are separated by 30 cm. What is the force between the two charges?
Answer:
4.38 × 10^13
Explanation:
plz mark as brainist
A pair of point charges, which have charges of –3µ C and –4µ C are separated by 2 cm. What is the value of the force between them
Answer:
pk
Explanation:
Kinetic and potential energy.
Answer: 3 hope this helps :)
Explanation:
Answer: #1 = 2 #2 = W
Explanation: Where there is the most potential energy is the top. The bottom when the energy has been used is where there is the most kinetic energy.
What do the best conductors have in common?
Answer:
A super conductor is a perfect conductor that has zero resistance. It doesn't just have very low resistance and conducts electricity well, it has ZERO resistance and conducts electricity perfectly with no losses at all
What is El Niño? What weather effects can El Niño cause?
What is La Niña? What weather effects can La Niña cause?
HELP RIGHT NOW!
help me i suck at physics ;-;
A man hits a golf ball (0.2 kg) which accelerates at a rate of 20 m/s2. What amount
of force acted on the ball?
force= mass x acceleration= 0.2 x 20= 4 N
(N stands for newton btw)
Describe the climate of a desert biome. (Temperature and precipitation)
ANSWER SOON PLS IM TIMED FIRST DO NOT GIVE ME ANY FILES OR ANY CHEATS FROM WEB PLS ANSWER CLEARLY THANK YOU OH What is the primary source of energy that drove the cycling of matter that formed the Grand Canyon?
the sun
the sun
Earth's hot interior
Earth's hot interior
erosion and weathering
Answer:
the sun and earths hot interior
Tsunamis and regular oceanic waves vary in many ways; explain at least two (2) differences between tsunami waves and regular oceanic waves.
science-who ever gets this will get a brainlest, Options
earthquakes
volcanoes
hurricanes
The answer is Earthquakes.
Hope that this helped!
Which phrases apply to the formation of the Grand Canyon?
Choose all that apply.
medium scale
long-term
small scale
short-term
large scale
Answer:
the answer should be 'small scale'
How do yeast cells get the nutrients that keep them alive?
Answer:
vitamins, amino acids and fat acids
Explanation:
Chimneys don't get smoke in the house because of...?
Choices:
-----------------------------------------
A. Archimedes's Principle
B. Bernoulli's Principle
C. Pascal's Principle
D. hydraulics
Answer:
B :D
Explanation:
What is the study of sound waves called?
short answer pls
Answer:
Acoustics
Explanation: It’s the branch of physics that deals with the study of mechanical waves in gases, liquids, and solids including topics such as vibration, sound, ultrasound and infrasound.
Answer:
Acoustics
Explanation:
Acoustics is the branch of physics concerned with the study of sound (mechanical waves in gases, liquids, and solids). A scientist who works in the field of acoustics is an acoustician. The application of acoustics in technology is called acoustical engineering.
PLEASE HELP :) THANK YOU Geologic processes change Earth's surface on varying scales of space and time. They range from rapid to very slow; from large to microscopic.
How does the time scale of slow geologic processes affect human perception of landforms on Earth? Provide details to support your answer.
Answer:
Human change the surface by mining it, falting it for land, we remove tree,plants, soil,mud, to build space for buidlings, farms, and etc hopes this help
Explanation:
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I’m tall when I’m young, and I’m short when I’m old. What am I?
Answer: Answer to the I'm Tall when I'm Young, and I'm Short when I'm Old. What am I? Riddle is a candle
Hope this helps
The rate of change of an object's velocity is called _______.
Answer:
The rate of change of an object's velocity is called acceleration.
Which one is Transverse Wave?
(A). Particles move in the perpendicular direction that the wave travels
(B). Particles move in the same direction as the wave travels
help due tonight- n no mfkn links plsssss
Answer:a
Explanation:
Answer:
Your answer for this question is A) Particles move in the perpendicular direction that the wave travels
How does the digestive system interact with the following organ systems (circulatory, muscular and nervous system) to maintain homeostasis?
Answer:
The circulatory system breaks down food and gets / absorbs nutrients. The muscular system works to get nutrients to the rest of the body. The nervous system basically controls the digestive system and sends information to the brain.
I'm pretty sure I'm right, but please correct me if I'm wrong! :)
Does frequency of a music player changes the direction of the electrical current in the system ?
Answer:
No
Explanation:
Sound doesn't has any relation with electric current sound is the movement of particles basically from one place to another and current is the movement of electrons, doesn't matter what the frequency of sound is current will always been flowing from positive terminal to the negative