Force = the mass of an object x its acceleration
Answer: Transverse wave
Explanation:
This type of wave is transverse wave. Transverse wave is a wave that occurs when the vibration of the medium is perpendicular to the direction of the wave. According to the question, the crowd were standing vertically but they were arranged in the stadium in the horizontal manner.
Answer:
There are several reasons for the extinction of species. Some of these can include climate change, natural disasters, environmental destruction, or over-hunting. All of these factors can contribute to the deaths of various animals which ultimately leads to extinction if left unchecked.
Explanation:
The correct answer of the question is : 0.001 s.
CALCULATION:
As per the question, the speed of sound v = 330 m/s
The frequency of the sound f = 990 Hz.
Let the wavelength of the wave is .
The wavelength of the wave is calculated as-
wavelength
=
= 0.33 m.
Now we are asked to calculate the time period.
The time period of the wave is reciprocal of frequency.
Mathematically time period T =
=
= 0.001 s.
As per the question, we need the period.
Hence, the period of the wave is 0.001 s.
Its a waste of time, you have to not only write it down, but study it after too . other than that notes are great.