Answer:
Vb= 5.42 m/s
Vc= 5.33 m/s
Δ L= 0.43 mm
Explanation:
a) A to B
Initial velocity Va = 0 m/s
As we know that
Vb= 5.42 m/s
b)
C to D
Vd= 0 m/s
Vc= 5.33 m/s
c)
Here
Vb= 5.42 m/s
Vc= 5.33 m/s
We know that
Acceleration is the rate of change of velocity
d)
Now length compressed given as
Δ L= 0.43 mm
The Supernova will be observed on Earth 60,000 years from now.
<h3>
What is Supernova?</h3>
- A supernova is a star's tremendous and brilliant explosion. It is referred to as a supernova or a supernovae and is abbreviated as SN or SNe.
- This fleeting astronomical occurrence takes place either when a white dwarf is set off into uncontrolled nuclear fusion or during the latter phases of the development of a big star. The original object, known as the progenitor, either disintegrates completely or falls into a neutron star or black hole.
- Before fading over the course of several weeks or months, the peak optical luminosity of a supernova can be similar to that of an entire galaxy.
- Compared to novae, supernovae are more energetic. Nova, which in Latin means "new," refers to what appears to be a transitory new bright star in astronomy. Supernovae can be distinguished from regular novae by the prefix "super-."
To learn more about Supernova with the given link
brainly.com/question/12702138
#SPJ4
Earth than mercury. your welcome
Answer:
It gets refracted.
Explanation:
When light beam travels through different mediums they refract i.e. they change their direction. Here the angle of incidence is less than 90°. After entering the glass slab the light beam will move towards the normal (a line drawn perpendicular to the interface of the two mediums). Thus the angle of refraction will be even lesser than angle of incidence.
