Solution
In this question we have given
Charge,
Charge,
Charge,
Distance between Charge and ,d=43cm=.43m
Let the distance between charge and , is x
Therefore,distance between charge and , will be=(.43-x)
We know By Couloms law, Force on Charge due to charge which are seperated by distance d is given by following equation
............(1)
Here, K=
Therefore,
Force on Charge due to charge
..(2)
Similarly,
Force on Charge due to charge
..(2)
In equilibrium condition,
on solving we get
x=.277m
0r x=28cm
The distance between charge and , is 28cm
Answer:
Black holes are detected as surrounding material (like gas) is funnelled by the force of gravity into a disk around the black hole. The gas molecules in the disk swirl around the black hole so fast that they heat up and emit X-rays. These X-rays can be detected from Earth.
Explanation:
The other elements are Carbon , Hydrogen, Nitrogen, Sulfate and Phosphorus
Answer:
The price per kWh is
The energy density in watt-hours per lb is
Explanation:
From the question we are told that
The voltage of the battery is
The capacity of the battery is
The price is
The weight of the battery is
Generally the energy generated by the battery is mathematically represented as
Here P is power which is represented as
So
=>
=>
=>
converting to kW h
=>
=>
Generally the cost of this energy produced is Hence the cost of 1 kWh is mathematically represented as
=>
=>
Generally the energy density is mathematically represented as
=>
=>
You apparently skipped some words and didn't copy them into the question. Fortunately, those words were part of the "red herring" section ... the part that only distracts you, and is completely unnecessary in order to answer the question.
The actual question here is: "What fraction of an hour is 7.2 seconds ?"
(7.2 sec) x (1 hour/3,600 sec) = 7.2 / 3600 = <em>0.002 hour </em>.