How do i solve A sound wave has a frequency of 658 Hz in air
and a wavelength of 0.46 m.
What is the temperature of the air? Assume the velocity of sound at 0◦C is 331 m/s.
Answer in units of ◦C

-47 °C

Explanation:

Speed of sound in air at sea level is:

v = 331 m/s + 0.6 m/s/°C T

where T is the temperature in Celsius.

The speed of sound is also the frequency times the wavelength:

v = fλ

Therefore:

fλ = 331 m/s + 0.6 m/s/°C T

(658 Hz) (0.46 m) = 331 m/s + 0.6 m/s/°C T

302.68 m/s = 331 m/s + 0.6 m/s/°C T

-28.32 m/s = 0.6 m/s/°C T

T = -47.2 °C

Rounding to two significant figures, the temperature is -47 °C.

as a general rule, scissors have blades less than 6 in (15 cm) long and usually have handles with finger holes of the same size. shears have blades scissors used to cut hair or fabric must be much sharper

magnified images possible images can be real = projected onto a screen