Answer:
length is 23.228091 m
Explanation:
Given data
radius = 0.791 mm = 0.791 × 
m
current = 9.25 A
voltage = 1.20 × 10² V
to find out
resistance and length of wire
solution
we know the resistance formula that is
resistance = voltage / current
resistance = 1.20 × 10² /9.25
resistance = 12.97
so resistance is 12.97 ohm
and length of nichrome wire formula is
length = resistance × area / specific resistance of wire
so specific resistance of wire we know = 1.1 × 
and area = 
× r² = × (0.0791× )²
area = 1.97 ×
length = 12.97 × 1.97 × / 1.1 ×
so length is 23.228091 m
A pebbled, uneven road would be easier to see at night because it minimizes the reflection of light from car’s light coming in the opposite direction. It is difficult to see when driving on the rainy day because the roadway reflects light from cars coming in the opposite <span>directions.</span>
The height of the light house is 17.86m.
To find the answer, we have to know about the simple pendulum.
<h3>How to find the height of the light house?</h3>
- We have the expression for time period of the pendulum as,
where, g is acceleration due to gravity, and l is the length of the pendulum.
- For the pendulum with time period T kept at some height under the influence of gravity, then the height will be equal to,
Thus, we can conclude that, the height of the light house is 17.86m.
Learn more about the simple pendulum here:
brainly.com/question/23269083
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