Answer:
156 dollars
Step-by-step explanation:
First you need to know the formula of the Resistance(R) of a conductor, which is:
-- (A)
Where,
R = Resistance of the wire = ?
K = Specific resistance of the wire(In this case Aluminum at 68°F) = 17.02 ohm-circular-mil-foot
L = Length of the wire(in feet)
CM = Circular mil Area(In inches)
Now in order to use the above formula(A), we have to first convert TWO quantities:
1) The length of the wire(from miles to feet)
2) Mils to Circular mil Area
1.
The length of the wire given = 2 miles
The length of the wire(In feet) = 10560 ft
2.
Since the mils given = 100 mils.
Therefore,
Circular mils(Circular mil Area) = mils x mils = 100 x 100 = 10000
Now plug-in the values in equation(A):
A=> R =
R = 17.97 ohms
Ans: Resistance of the aluminum wire = 17.97 ohms.-i
Answer:
x=-3 x=-11
Step-by-step explanation:
−3|x + 7| = −12
|x + 7|=4
x+7=4 x+7=-4
x=-3 x=-11
Answer: D)600N
Step-by-step explanation:
The question is incomplete, since it is not given the acceleration. However, let's assume the truck's acceleration is .
Now, according to Newton's second law of motion, the force exerted on an object is directly proportional to its mass and acceleration :
Where:
Solving the equation:
Finally:
Step-by-step explanation:
2642 and 3842
3842-2642=1200
3842+2642=6484