Net force = mass x acceleration = 250 x 3 = 750 N
To solve this problem it is necessary to apply the concepts related to work and power.
Remember that work is defined as the force applied on a body - or exerted by it - to travel a certain distance, and that the power is that energy mentioned to perform that activity in a given instance of time.
Mathematically work is defined as
Where
d = Distance
At this case the acceleration is the same that gravitational acceleration
At the same time we have that power is defined as
Replacing our values we have that the Work done was
Now substituting this value at the Power equation we have
Therefore the power that she is supplying is 100W.
I think it’s D because I have heard in previous tests that it ruins the landscapes
The amplitudes are subtracting which is when one has a peak (high point) and one has a trough (low point) This cancellation is called destructive interference
1) cuscuta - parasitic
2) pitcher plant - insectivorous
3) Green plants -Autotrophs
4) Food store in - starch
plants
5) Rhizobium -Bacteria