The air temperature is 70 degrees, and the relative humidity is 90%. Which conclusion can be made?(1 point) The air holds little water vapor and is relatively dry.

The amount of water vapor in the air is 90% of what the air can hold.

The dew point temperature is 90% of the air temperature.

The temperature must rise in order for air to become saturated with water vapor.

The amount of water vapor in the air is 90% of what the air can hold.

Explanation:

The answer is A

Part a)

wavelength = 50 cm

frequency = 136.6 Hz

Part b)

wavelength = 2.48 m

frequency = 136.6 Hz

Explanation:

As we know that linear mass density of the wire is given as

now we know that tension in wire is given by

T = 35 N

so the speed of wave in the string is given as

Part a)

now wire is vibrating in second overtone

so here we have

now frequency is given as

Part b)

Frequency will remain same as it depends on source only

so frequency of sound wave will be f = 136.6 Hz

also for wavelength we have