Can you tell me which variable do you looking for.
Answer:
Degenerative accelerator:
The device which is used to study the brain and degenerative diseases like Alzheimers and Parkinson is called degenerative accelerator.
These accelerator have higher specific activity and it is comparable to reactor products.By using these accelerator many radio active nuclides can be produced those can not be produce by neutron reaction.
These generates synchrotron light that can be used for reveal the inorganic and organic structure.
Let's divide the aquarium into tiny layers of water. Each layer is located at a different depth and will require a different amount of work to be done to be moved to the top of the aquarium. Therefore integration is required to calculate the total work to move half of the water out.
Recall this equation for the work required to move an object to a certain height:
W = mgh
W = work done, m = mass, g = gravitational acceleration, h = height
Focus on one of the tiny layers of water. It has a tiny mass dm which requires a tiny amount of work dW to be moved a distance equal to its depth h:
dW = dm(g)(h)
The tiny mass dm can be represented as the water's density p multiplied by a tiny bit of volume dV:
dm = p(dV)
Make a substitution:
dW = p(dV)(g)(h)
Each tiny layer of water has a volume dV equal to the base of the aquarium multiplied by a tiny height dh:
dV = 4(3)(dh) = 12dh
Make another substitution:
dW = 12pgh(dh)
Now let's integrate both sides:
W = ∫12pgh(dh)
Set the integration bounds to h = [0m, 1m] since the aquarium is 2m deep and we are only removing half of its water.
W = 6pgh² evaluated between h = 0m and h = 1m
W = 6pg
Given values:
p = 1000kg/m³, g = 9.8m/s²
Plug in and solve for W:
W = 6(1000)(9.8)
W = 58800J
Answer:
the magnitude of the second charge is 0.000156 C.
Explanation:
Given;
mangitude of the first charge, q₁ = 0.0005 C
attractive force between the two charges, F = 7.0 N
distance between the two charges, r = 10 m
let the magnitude of the second charge = q₂
The magnitude of the second charge is calculated by applying Coulomb's law;
Where;
K is Coulomb's constant = 9 x 10⁹ Nm²/C²
Therefore, the magnitude of the second charge is 0.000156 C.