Answer:
0.0196 j
Explanation:
i) The formula for kinetic energy is as follows: 0.5*m*v^2
ii) Since we have all the values all that's left is to plug them into the equation
iii) First, WE MUST, Convert grams into kgs as this is the SI unit of mass so 2.45/1000
iv) All that's left now is to plug it into the equation so:
0.5* (s.45/1000)*(4^2)
v) Lastly we add the unit joules at the end as we're talking about energy
Hope this was useful! :)
Equivalent resistance of Circuit = 10 + 5 + 6 = 21 Ohms
Current = 6 Amp
Now, We know, Voltage = Equivalent resistance * Current
V = 21 * 6
V = 126 V
In short, Your Answer would be 126 Volts
Hope this helps!
Answer:
Flow; Impressed
Explanation:
The electric charge can be think of as the flow rate of electrons in a certain area or point. Voltage is a difference in electrical potential, it makes charges to move in the electrical conductor, therefore it is impressed across a circuit
This question is incomplete, the complete question is;
Resistors 1 and 2 are connected to identical batteries, resistor 1 dissipates 4.0 times more power than resistor 2
What is the ratio P1/P2of their power dissipations if the same current passes through each resistor
Answer:
the ratio P₁/P₂ of their power dissipations is 0.25
Explanation:
Given the data in the question;
= --------------let this be equation 1
= -----------------let this be equation 2
P₁ = V²/R₁
P₁ = 4P₂
so
P₁ = V²/R₁ = 4( V²/R² )
now, form the above equation;
R₁ = R₂/4
using equation 1, we get;
P₁ =
P₂ =
Hence;
P₁ = ( R₂/4)
P₁ = × ( R₂/4)
P₁ = (1/4) P₂ or 0.25
Therefore; the ratio P₁/P₂ of their power dissipations is 0.25