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azamat
3 years ago
7

Why is iron significant to understanding how a supernova occurs?

Physics
1 answer:
Vilka [71]3 years ago
6 0
<h3><u>Answer;</u></h3>

Iron cannot release energy by fusion.

<h3><u>Explanation;</u></h3>
  • Supernovae are some of the most magnificent events in the cosmos. When a massive star dies, it can result in a spectacular explosion many times that of man's total nuclear arsenal.
  • When a star has used up all the lighter elements and has just iron left, it has no more nuclear "fuel". That causes the star to contract then explode very violently as a supernova.

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URGENT
Advocard [28]

Answer:

give \\ mass(m) = 1350kg  \\ acceleration(a) = 1ms {}^{ - 2}  \ \\ sln\ \\  from \: our \: formula \\  \: f = ma \\1350kg \times 1ms {}^{ - 2}  \\ f = 1350newton

the force you applied to your car =1350N

5 0
3 years ago
I need help in physics, pls hurry! I will give Brainliest for correct answers!!
Nana76 [90]
Top left: slowing down
Top right: not moving
Bottom left: moving at a constant speed
Bottom right: speeding up
6 0
2 years ago
A brother and sister are standing next to each other at rest on a surface of frictionless ice. The brother’s mass is exactly twi
a_sh-v [17]

The sister suddenly pushes her brother. As a result, the sister moves with kinetic energy k. The resulting kinetic energy of the brother is k/2.

<h3>What is kinetic energy?</h3>

The ability of an object to do work by virtue of its motion is called the kinetic energy.

A brother and sister are standing next to each other at rest on a surface of frictionless ice. The brother’s mass is exactly twice that of his sister’s.

If the sister's mass is m, the brother's mass is 2m.

The kinetic energy of sister is k =1/2 mv²,

The velocity will also get halved for brother, So, the kinetic energy of brother will be

k' = 1/2 (2m)(v/2)²

On comparing, the relation between the kinetic energy of brother and sister is k' = k/2

Thus, the resulting kinetic energy of the brother is k/2.

Learn more about kinetic energy.

brainly.com/question/12669551

#SPJ4

7 0
1 year ago
Does crystallization break down rocks at earths surface to form sediment
Nana76 [90]

Answer:

No

Explanation:

Crystizaltion of magma turns into indeginous rocks which then turns into sediment after weathering and erosion.

3 0
2 years ago
A wheel with a weight of 388 N comes off a moving truck and rolls without slipping along a highway. At the bottom of a hill it i
Alisiya [41]

the correct answer is 14m

4 0
3 years ago
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