What do we mean by the main-sequence turnoff point of a star cluster, and what does it tell us? It is the spectral type of the hottest main sequence star in a star cluster, and it tells us the cluster's age. It is the point in a star cluster beyond which main sequence stars are not found, and it tells us the cluster's distance. It is the faintest and coldest main sequence star in a cluster, and it tells us the cluster's age. It is the mass of the most massive star in the star cluster, and it tells us the cluster's size.
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Answer:
Explanation: The turnoff point for a star refers to the point on the Hertzsprung–Russell diagram where it leaves the main sequence after its main fuel is exhausted-the main sequence turnoff. HR diagrams for two open clusters, M67 and NGC 188, showing the main sequence turn-off at different ages.
Related Questions
An element's atomic number is 93. how many protons would an atom of this element have? ???? protons
A car leaves the pit after a refueling stop and accelerates uniformly to a speed of 62.2 m/s in 5.0 s to rejoin the race. What is the car's acceleration during this time?
"A hole is punched in a full milk carton, 10 cm below the top. What is the initial velocity of outflow?"
What are the importantCharacteristics of climate?
Which star on this diagram is the most similar to the Sun in luminosity and temperature?
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Answer: The answer is 3000 K and Centauri A.
Explanation:
Just did it and got it right ♡´･ᴗ･`♡
Answer:
What is the approximate temperature of the supergiant Betelgeuse?
3000 K
Which star on this diagram is the most similar to the Sun in luminosity and temperature?
Centauri A
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ANSWER:
The moving car transfers kinetic energy to the parked car.
EXPLANATION:
Kinetic energy is the energy an object has because of its motion and can be transferred between objects and transformed into other kinds of energy.
When a moving car hits a parked car, causing the parked car to move, the type of collision is elastic collision. An elastic collision is when two bodies collide and separates after collision conserving the total kinetic energy before and after collision.
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The speed of an object is the distance divided by the time of travel. The speed of the person running 400 meters in 2 minutes is 3.3 m/s.
What is speed?
Speed is a physical quantity used to measure the distance covered per unit time. Speed is a scalar quantity thus, having magnitude only. The rate of speed is called velocity. Velocity is a vector quantity.
Speed in physics is the ratio of the distance covered per unit time. Thus, speed can have the units m/s, Km/hr, ft/s miles/s etc. As the time of the travel increases, speed is said to be decreasing.
The distance covered = 400 meters.
time = 2 minutes = 2 × 60 s = 120 s
Speed = distance / time
= 400 m/ 120 s
= 3.3 m/s.
Therefore, the speed is 3.3 m/s.
To find more on speed, refer here:
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Answer:
3.3m/s
Explanation:
speed =Distance /Time
x=400m
t=2mintues=2min*60sec/min=120seconds
S=400m/120s
S=3.33333...
therefore speed = 3.3m/s
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w2=200rpm-.10(200rpm)=180rpm
180rpm*2pi/60=18.8rad/s
a=(18.8-20.9)/10= -.21rad/s^2
I=1/2(28)(.15)^2
I=.315kg*m^2
Torque= -.21(.315)=.06615 N*m
Friction force= -.06615/.15=-.441 N
Normal force of man=.441/.2= 2.205 N
Final answer: -2.205 N
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Right now the ball only has potential energy but when the ball falls that will be converted into kinetic energy because it is moving. BTW Im 14 in 9th grade ya'll should know this.
Answer:
potential; kinetic
Explanation:
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m1, m2 - mass in kg
r - distance in meter.
m1 = m2 = 0.1kg
r = 15m
Greetining
Answer:
the answer is =2.96 x10^-11 N
Explanation: