Answer:
wavelength = 219.8 m
Explanation:
Data Given:
Frequency of radio wave = 1.365×10⁶ A or 1365 kHz
wavelength = ?
Solution:
As Frequency of radio wave is 1.365×10⁶ s⁻¹ or 1365 kHz
if we look for conversion of KHz to s⁻¹
So,
1 KHz = 1000
1365 kHz = 1365 x 1000 = 1.365×10⁶ s⁻¹
So
1365 kHz = 1.365×10⁶ s⁻¹
Now equation used to calculate wavelength
f = c/λ
rearrange the above equation
λ = c/f ........(1)
Where:
c = speed of light = 3 x 10⁸ ms⁻¹
λ= wavelength
put the values in above equation 1
λ = 3 x 10⁸ ms⁻¹ / 1.365×10⁶ s⁻¹
λ = 219.8 m
So the wavelength of radio wave = 219.8 m
This is a neutralization reaction.
The amount of heat required is 9.0 kJ.
<em>q = mC</em>Δ<em>T
</em>
Δ<em>T</em> = <em>T</em>_f – <em>T</em>_i = 65 °C – 32 °C = 33 °C
<em>q</em> = 65 g × 4.184 J·°C⁻¹g⁻¹ × 33 °C = 9000 J = 9.0 kJ
A passing grade is a grade that makes a person eligible to go to the next grade.