Answer:
ΔV=0.484mV
Explanation:
The potential difference across the end of conductor that obeys Ohms law:
ΔV=IR
Where I is current
R is resistance
The resistance of a cylindrical conductor is related to its resistivity p,Length L and cross section area A
R=(pL)/A
Given data
Length L=3.87 cm =0.0387m
Diameter d=2.11 cm =0.0211 m
Current I=165 A
Resistivity of aluminum p=2.65×10⁻⁸ ohms
So
ΔV=IR
ΔV=0.484mV
Answer:
The distance traveled by the tuning fork is 9.37 m
Explanation:
Given;
source frequency, = 683 Hz
observed frequency, = 657 Hz
The speed at which the tuning fork fell is calculated by applying Doppler effect formula;
where;
is speed of sound in air = 343 m/s
is the speed of the falling tuning fork
The distance traveled by the tuning fork is calculated by applying kinematic equation as follows;
where;
is the initial speed of the tuning fork = 0
g is acceleration due to gravity = 9.80 m/s²
Therefore, the distance traveled by the tuning fork is 9.37 m