Answer:
he longer ramp has more mechanical advantage for it requires less force to push up a mass while being over a longer period of time. Its called Mechanical Advantage because say you had to lift a car up 1-meter. you cannot simply pick it up, but over a long enough slope you would be able to because you can apply a small force over a longer distance
Explanation:
The electricity produced by a generator works through the concepts of the following three factors; magnetic field, voltage and current. When a conductor with current flowing in it is placed in a magnetic field, it will cause the electrons to move in a direction perpendicular to the magnetic field. When working with generators, the guide for this direction is Fleming's Right Hand Rule. Since the electron move in perpendicular motion with magnetic field all the time, it would cause it to spin in a helical direction. These turns would then induce voltage and create electricity.
Answer:

Explanation:
Given

Required
Determine the difference in the blood pressure from feet to top
This is calculated using Pascal's second law.
The second law is represented as:

Subtract P1 from both sides

Where



P2 - P1 = Blood Pressure Difference
So, the expression becomes:



Hence, the difference in blood pressure is approximately 
Answer:
dv = 1.03 inch^3
Explanation:
given data:
diameter = 3 inch
radius = 1.5 inch
height 4 inch
top and bottom thickness is 0.02 inch
side thickness = 0.015 inch
we know that volume of the cylinder is given as

by definition of differential we have

where dh = -(0.02 + 0.02) = 0.04 inch [ sum of top and bottom thickness]
the radius is decreased by 0.02 inch, dr = 0.02 inc,


dv = 37.69*(0.02) + 7.06*(0.04)
dv = 1.03 inch^3