What is the work done by the 200.-N tension shown if it is used to drag the 150-N crate 25 m across the floor at a constant spee
1 answer:
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Answer:b
Explanation:
Given
Woman earn 50% more than her husband
Total sum of their money is
Suppose man earns
so women earns
Sum of their money is
Women earns
Answer:
Explanation:
-The only relevant force is the electrostatic force
-The formula for the electrostatic force is:
E is the electric field and q is the magnitude of the charge.
#Since the electric field is the same in both cases, and the charge of the protons and electrons have the same magnitude, you can state that the magnitude of the electric forces acting in both proton and electron are the same.
-Applying Newton's 2nd Law:
#equate the two forces:
#The equations for velocity in uniform acceleration:
#For the proton:
#For the electron:
The mass values of the proton and electron are:
The speed of the ion is therefore calculated as:
Hence, the ion's speed at the negative plate is