Answer:
<h3>The answer is 3.37 m/s²</h3>
Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula
![acceleration = \frac{force}{mass} \\](https://tex.z-dn.net/?f=acceleration%20%3D%20%20%5Cfrac%7Bforce%7D%7Bmass%7D%20%5C%5C)
From the question
force = 172 N
mass = 51 kg
We have
![acceleration = \frac{172}{51} \\ = 3.372549019...](https://tex.z-dn.net/?f=acceleration%20%20%3D%20%20%5Cfrac%7B172%7D%7B51%7D%20%20%5C%5C%20%20%3D%203.372549019...)
We have the final answer as
<h3>3.37 m/s²</h3>
Hope this helps you
The only thing you need to know in order to solve this task is that <span>plank length (which is force x), should equal the increase in potential energy, so what we have now : (mass)* g * (height).
It has to look like that: </span>
<span>F * 3.0 = 150 x 9.81 x 1.20
Then solve for F, the result should be in newtones = 588N
Do hope it makes sense.</span>
Number a is a correct one
Yes, the earth radiates energy, but since the peak frequency f is directly proportional to the absolute temperature of the radiator, the wavelength of the radiation is far too long for us to see.
Answer: Option C
<u>Explanation:</u>
Radiations or light rays are the basic name for electromagnetic energy packets travelling through space. It goes extremely quick (multiple times around the earth in one second) and can go through a vacuum. It needn't bother with material to travel in.
It has numerous structures, including visible light, infrared (IR), bright (UV), X-beams, microwaves, and radio waves. These are a no different structure of energy, just with various frequencies and measures of energy. Various frequencies of radiation communicate with an issue in an unexpected way, which causes them to appear to be more changed to us than they truly are.