Add parentheses around the ( 2 + 3 )
R = ?
L = 3.1 m;
r = 1.7 mm/ 2 = 0.85 mm = 0.85 * 10^(-3) m
Resistivity of copper ( rho ) = 1.68 * 10 ^(-8) [Ohm m ]
A = 3.15 * ( 0.85 * 10^(-3))^2 = 2.26865 * 10 ^(-6)
R = ( Rho ) * L / A = 1.68 * 10^(-8) * 3.1 m / 2.26865 * 10^(-6) =
= (1.7 * 3 .1 / 2.26865 )* 10^(-2) = 0.02323 Ohms ( the resistance )
If the circumference of a circle is changed from 9 cm to 3 cm, then the diameter decreases by a factor of 3.
The new graph will go down 4 point so y coordinate will go down 4. (-6,5) becomes ( -6, 1)
Answer:
A has the greater value
Explanation:
-8 is a negative number, so if you multiply it by any positive number greater than 1 it will only go further left on the number line (become “more” negative). However, if you add a positive number to a negative number, it will go further right on the number line.
Proof:
B: -8*3=-24
A:-8+4=-4
-4>-24
I hope this helps!
