Answer:
1.53 cm
Explanation:
The relationship between wavelength and frequency for a wave is:
where
v is the speed of the wave
f is the frequency
is the wavelength
In this problem, we have:
is the frequency of the ultrasound wave
is the speed of sound in sea water at room temperature
Re-arranging the previous equation and solving for , we find the wavelength of the ultrasound wave:
Answer:
Explanation:
THE GIVEN sheet can be taken as two horizontal force with surface charge density is
at one surface is ∈_1 =
at oher surface is ∈_2=
the magnitude of electric field due to surface charge is given as
So, electric field at P (2 CM below from surface is) = E_1 +E_2
Answer:
220.7
Explanation:
distance traveled is 1.5*5=7.5m
PE gain is MGH=3*9.81*7.5=220.7