Answer:
Explanation:
Given
Water column height
After oil is poured, the total height becomes
Pressure at the bottom will be the sum due to the water and oil column
Suppose the density of the oil is
Pressure at the bottom
The answer is: 720W
The definition of Power is:P =L/t =→F⋅→s/t =→F⋅→s/t = →F⋅→v
The ⋅ in the last formulation designate a scalar product, well-defined by:
→v . →w = |v| |w| cos(ˆvw), the angle ˆvw is 0 because →F and →v are parallel, so the cosinus is 1.
So: P=1800N⋅ 0,40m/s=720W.
If we start taking into account the free body diagram, we then start damping motion of a body by means of this equation:
<span>m * d^2 x/dt^2 + c* dx/dt + k* x = 0 </span>
<span>free undamped motion is when (c =0) </span>
<span>therefore </span>
<span>50* d^2 x/dt^2 + 200* x = 0 </span>
<span>w = omega = sqrt(k/m) = sqrt(200/50) = 2 </span>
<span>Then </span>
<span>A*cos(w*t) + B*sin(w*t) = x </span>
<span>find A and B using intial conditions and you will get the rest that you need. Hope this helps</span>
Answer: did you get the answers?
Explanation:
Radiation therapy can used in treating and destroying tumors in the human body, but it can also cause long-term damage to tissues if used incorrectly.<span> Radiation can be used in X-rays to detect broken bones and other internal damages.</span>