Question

"B). A brass rod is 4m long
at a certain temperature.
Calculate the change in
length of the rod for a
temperature change of
100K [Linear
expansivity of brass as
1.8×10^-5

Answer 1

Answer:

the change in length of the brass rod for a temperature change of 100K is 0.0072 meters

Explanation:

Answer 2

Answer:

Change in length = 7.2 × 10^-3 m

Explanation:

$linear \: expansivity = \frac{change \: in \: length}{original \: length \times change \: in \: temperature}$

$1.8 \times {10}^{ - 5} = \frac{change \: in \: length}{4 \times 100}$

$change = 1.8 \times {10}^{ - 5} \times4 \times 100 = 0.0072m = 7.2 \times {10}^{ - 3}m$

Change in length = 7.2 × 10^-3 m