<h2>
a) Equivalent resistance is 143 Ω</h2><h2>
b) Potential difference is 71.5 V</h2>
Explanation:
When resistors are connected in series, effective resistance is given by
Here
R₁ = 21Ω
R₂ = 58Ω
R₃ = 64Ω
a)
Equivalent resistance is 143 Ω
b) We know
Potential difference = Current x Resistance
V = IR
I = 0.5 A
R = 143Ω
Substituting
V = 0.5 x 143 = 71.5 V
Potential difference is 71.5 V
Answer:
Blue Lighting
Explanation:
In order to make red look black, you must use blue light. The blue would be absorbed and there would be no red light to reflect.
Answer:
The centripetal on the car will become 4 times when the velocity gets twice.
Explanation:
As we know that centripetal force on the car of mass m and moving with constant speed v given as
m=mass
v=velocity
r=radius of the circular arc
We are assuming that the mass of the both the car is same.
If the velocity of the car gets twice 2 v
The new centripetal force on the car
Therefore we can say that centripetal on the car will become 4 times when the velocity gets twice.
Knee stabilizers often offer more support and help of course if you have knee cap issues. However, it will also help in twisting and turning of your knee. On the other hand, knee brace support will just back-up your need and take pressure off your knee.
Hope it helps!
The formula for calculating the resistance of a conducting wire is:
R = P A* L/A
Where:
R = Resistance = 50
P = Resitivity = ?
L = Length of the the wire = 1.5
A = Cross sectional area of the wire = 2.0
To use this formula to calculate resitivity, we will make P to become the subject of the formula, thus we have:
P = R * A/L
P = 50 * 2/1.5 = 66.67
Therefore the wire resitivity is 66.67 ohm meter.
The general information that one needs to find out in order to answer this question is the relationship among the parameters that are given in the question.