What are the answer options? It says which of the following. :)
Frequency = speed ÷ wavelength
= 330m/s ÷ 2.5m
= 132 Hz
<span>The rate at which work is done or energy is used is referred to as power. </span>
Answer:
a
Explanation:
it has no more water to make it bigger
Resistance
R
of a conducting wire of length
l
and of area of cross section
A
is given by the expression
R
=
ρ
l
A
where
ρ
is resistivity or specific resistance of the material of the conductor.
Inserting given values in the expression in SI units we get
34
=
(
1.7
×
10
−
8
)
l
π
(
0.1
1000
)
2
4
⇒
l
=
34
1.7
×
10
−
8
×
π
4
(
0.1
1000
)
2
⇒
l
=
15.71
m
, rounded to two decimal places.
