Answer: The frequency of the wave is 0.5 hertz.
Explanation:

= Frequency of the wave
= speed of the light in m/s
= Wavelength of the wave.
Here in question we are given with speed of the infrared light. So, we will replace the value of speed of light(c) from the given value of the speed of the infrared light.
Speed of infrared light = 6 m/s

The frequency of the wave is 0.5 hertz.
Answer:
backward, opposite, retrograde
Explanation:
why, i just got it right when i put that.
Answer:
i think the first blank is young- offspirng
Explanation:
Answer:
The pressure exerted by helium on the walls of the container is approximately 760.6 mmHg
Explanation:
The parameters given in the question are;
Amount of moles of helium in balloon = 1.00 mole
Volume of balloon = 22.4 L = 0.0224 m³
Temperature of balloon = 0.00°C = 273.15 K
Therefore, we have the pressure given by the universal gas equation as follows;
P·V = n·R·T
So that

Converting the resultant pressure in pascals, Pa to millimetre mercury, mmHg we have;
1 mmHg = 133.3 Pa
∴ 1 Pa = 1/133.33 mmHg and
101388.646 Pa = 101388.646× 1/133.3 mmHg = 760.604996 mmHg
Therefore the pressure exerted by helium on the container ≈ 760.6 mmHg.