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2 years ago

What are the three main end results for the life cycle of a star?.

Physics

1 answer:

Gennadij [26K]2 years ago

3 0

Answer: planetary nebula phase, and white dwarf phase

Explanation:

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What is the potential energy of a spring that is compressed 0.65 m by 25kg block if the spring constant 95 Nm

trasher [3.6K]

Answer:

The potential energy is 189nm

Explanation:

3 0

3 years ago

A body of mass 100g moving with a velocity of 10.0m/s collides with a wall .if after the collision it moves with a velocity of 2

ch4aika [34]

Answer:

-1.2 kg - m/s

Explanation:

$\pink{\frak{Given}}\begin{cases}\textsf{ A body of mass 100g moving with a velocity of 10.0m/s collides with a wall .}\\\textsf{ After the collision it moves with a velocity of 2.0m/s in the opposite direction.}\end{cases}$

And we need to find out the change in momentum of the body . Here ,

velocity before collision (u) = 10m/s
velocity after collision (v) = 2m/s .

We know that momentum is defined as amount of motion contained in a body . Mathematically ,

$\sf\longrightarrow momentum (p)= mass(m) * velocity(v)$

Therefore change in momentum will be,

$\sf\longrightarrow \triangle p = mv - mu$

Since the direction of velocity changes after the collision , the velocity will be -2m/s .

$\sf\longrightarrow \Delta p = 100g( -2m/s -10m/s) \\$

$\sf\longrightarrow \Delta p =\dfrac{100}{1000}kg ( -12m/s) \\$

$\sf\longrightarrow \Delta p = 0.1 kg * -12m/s \\$

$\sf\longrightarrow \boxed{\bf \Delta p = -1.2 \ kg-m/s} \\$

7 0

2 years ago

"Ryan drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 7 hours. When Ryan drove

Flura [38]

Answer:

Distance between Ryan home and mountain will be 252 miles

Explanation:

Let the distance from home to mountains is d

It is given that it took 7 hours to go mountains from home

Let the speed in going to mountain is v

Then according to question speed in coming from mountain is v+27

And time taken in come from mountain to home is hour

As distance will be same in both case

Distance will be equal to $distance=speed\times time$

So $v\times 7=(v+27)\times 4$

$3v=108$

v = 36 miles per hour

So distance will be equal to $d=36\times 7=252miles$

8 0

3 years ago

PLEASE HELP I WILL GIVE BRAINLIEST IF RIGHT!!!!

marta [7]

Answer:

The answer is D

Hope this helped

PLEASE GIVE BRAINLIEST

Explanation:

6 0

3 years ago

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Molybdenum (Mo) has a BCC crystal structure, an atomic radius of 0.1363 nm, and an atomic weight of 95.94 g/mol. Compute and com

____ [38]

Answer:

Solid State or Condense matter book

Explanation:

8 0

3 years ago

Read 2 more answers