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3 years ago

13

Explain how we use a spectrometer to help us determine what stars and planets are made of?

1 answer:

BaLLatris [955]3 years ago

4 0

We use a spectrometer to help us determine what stars and planets are made of by passing a light through various chemical elements, different spectral patterns are created. By matching those patterns up to patterns generated in a laboratory environment we can tell what the composition of a distant star or planet is.

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What color does the star alpha centauri appear to be?

myrzilka [38]

B.yellow-white is the answer.

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What test may be used to determine if a stain is blood or not

AveGali [126]

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3 years ago

a 0.15 kg baseball has a momentum of 0.78 kg*m/s just before it lands on the ground. What was the ball's speed just before landi

vovangra [49]

5.2m/s

Explanation:

Given parameters:

Mass of baseball = 0.15kg

Momentum of baseball = 0.78kgm/s

Unknown:

Speed of baseball = ?

Solution:

The momentum of the baseball is a function of the product of the mass and velocity. It is a vector quantity:

Momentum = mass x velocity

Since the speed of the ball is unknown:

Velocity = $\frac{momentum }{mass}$

= $\frac{0.78}{0.15}$

= 5.2m/s

The speed of the baseball before it lands is 5.2m/s

Learn more:

Momentum brainly.com/question/9484203

#learnwithBrainly

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3 years ago

Help me answer this

liberstina [14]

no thanks your a fat h/o/e

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3 years ago

An object with a lot of mass has ____________.

aleksley [76]

C. a lot of inertia.............................. :-)

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