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Olenka [21]
2 years ago
14

Because white dwarfs are small, as their name implies, they are hard to see. What is a way astronomers have to find white dwarfs

that distinguishes them from main sequence stars
Physics
1 answer:
Bumek [7]2 years ago
3 0

Astronomers find white dwarfs that distinguish them from main sequence stars because white dwarfs get really hot, we can search for their ultraviolet radiation.

<h3>What is a white dwarf?</h3>

A white dwarf is a very hot star that radiated much energy in the form of ultraviolet radiation.

This UV radiation is initially very bright and then these stars become red with time.

In conclusion, Astronomers find white dwarfs they can search for their ultraviolet radiation.

Learn more about white dwarfs here:

brainly.com/question/19602278

#SPJ1

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In a shot-put competition, a shot moving at 15m/s has 450J of mechanical kinetic energy. What is the mass of the shot? Please he
Llana [10]

Answer:

Mass of shot (m) = 4 kg

Explanation:

Given:

Velocity (v) = 15 m/s

Mechanical kinetic energy (K.E) = 450 J

Find:

Mass of shot (m) = ?

Computation:

Mechanical kinetic energy (K.E) = 1/2mv²

Mechanical kinetic energy (K.E) = [1/2](m)(15)²

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3 0
3 years ago
A block of 1 kg with a speed 1 m/s hits a spring placed horizontally as shown in the figure. If spring constant is 1000 N/m, fin
Evgen [1.6K]

Answer:

0.0316 m

Explanation:

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                              x = 0.0316 m

k = spring constant

m = mass of block

v = velocity of the block

x = compression of spring

8 0
3 years ago
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C I think but I’m not really sure....
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