Answer:
Produce energy, or make carbohydrates or fats.
Explanation:
Answer:
The electric field strength is
Explanation:
Because the electric field is uniform and the electron is moving parallel to it, then the net force is constant so the acceleration (a) is constant too, that allow us to use the next kinematic equation to find the acceleration of the electron.
with v the final velocity, v0 the initial velocity and Δx the distance
With the acceleration we can apply Newton's second Law that relates acceleration and net force (F):
with m the mass of the electron ().
So, the force on the moving electron is:
Finally knowing that electric force and electric field are related with the equation
with e the charge of the electron
Using the calculated value of the force and the charge of the electron ():
Answer:
81.3ohms
Explanation:
Resistance is known to provide opposition to the flow of electric current in an electric circuit.
Power dissipated by the computer is expressed as;
Power = current (I) × Voltage(V)
P = IV... (1)
Note that from ohms law, V = IR
I = V/R ... (2)
Substituting equation 2 into 1, we will have;
P = (V/R)×V
P = V²/R.. (3)
Given source voltage = 100V, Power dissipated = 123W
To get resistance R of the computer, we will substitute the given value into equation 3 to have
123 = 100²/R
R = 100²/123
R = 10,000/123
R = 81.3ohms
The resistance of the computer is 81.3ohms