Answer:
The frequency of the sound wave in the helium in the stopped pipe is 749.25 Hz.
Explanation:
Given that,
Length = 1.00 m
Temperature T = 20°C
Speed of sound = 999 m/s
We need to calculate the frequency of the sound wave in the helium in the stopped pipe
Using formula of frequency
Put the value into the formula
Hence, The frequency of the sound wave in the helium in the stopped pipe is 749.25 Hz.
Answer:
Explanation:
Force can be found by multiplying the mass by the acceleration.
The mass is 150 kilograms and the acceleration is 2 meters per second per second, or 2 meters per square second.
Substitute the values into the formula.
Multiply.
- We know that 1 kilogram meter per square second is equal to 1 Newton.
- Therefore our answer of 300 kg*m/s² is equal to 300 N
The force of the object is <u>300 Newtons.</u>
Answer:
B
Explanation:
The others are natural growth developments
Greater red shifts in the spectra of galaxies indicate faster speeds.
