Answer:
Archimedes' principle states that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially, is equal to the weight of the fluid that the body displaces. Archimedes' principle is a law of physics fundamental to fluid mechanics.
The answer to this is Protostar.
This is a process where it is gathering mass from its parent molecular cloud. Its a very young star meaning, the star was now born.
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The question is asking to calculate the object's speed v1, v2, v3 at the certain time is the given of the problem, in my calculation, I would say that the speed would be 2m/s, 1.5m/s, 0.22m/s. I hope you are satisfied with my answer and feel free to ask for more if you have question and further clarification
The wind blows because of____.a. Low pressure and high pressure
b. Convection in together atmosphere.
c. Uneven hearing by the sun
*uneven 'hearing' is not a real thing. However there is an uneven 'heating' of the sun
d. All of the above
Answer:
If C is a typo, the answer is D.all of the above.
Answer:
(a). The spring compressed is
.
(b). The acceleration is 1.5 g.
Explanation:
Given that,
Acceleration = a
mass = m
spring constant = k
(a). We need to calculate the spring compressed
Using balance equation
![kx-mg=ma](https://tex.z-dn.net/?f=kx-mg%3Dma)
....(I)
The spring compressed is
.
(b). If the compression is 2.5 times larger than it is when the mass sits in a still elevator,
The compression is given by
![x=2.5\times x_{0}](https://tex.z-dn.net/?f=x%3D2.5%5Ctimes%20x_%7B0%7D)
Here, acceleration is zero
So, ![x=2.5\times\dfrac{mg}{k}](https://tex.z-dn.net/?f=x%3D2.5%5Ctimes%5Cdfrac%7Bmg%7D%7Bk%7D)
We need to calculate the acceleration
Put the value of x in equation (I)
![2.5\times \dfrac{mg}{k}=\dfrac{ma+mg}{k}](https://tex.z-dn.net/?f=2.5%5Ctimes%20%5Cdfrac%7Bmg%7D%7Bk%7D%3D%5Cdfrac%7Bma%2Bmg%7D%7Bk%7D)
![2.5\times\dfrac{mg}{k}=\dfrac{m}{k}(a+g)](https://tex.z-dn.net/?f=2.5%5Ctimes%5Cdfrac%7Bmg%7D%7Bk%7D%3D%5Cdfrac%7Bm%7D%7Bk%7D%28a%2Bg%29)
![a=2.5g-g](https://tex.z-dn.net/?f=a%3D2.5g-g)
![a=1.5g](https://tex.z-dn.net/?f=a%3D1.5g)
Hence, (a). The spring compressed is
.
(b). The acceleration is 1.5 g.