<h2>The height of the room is 36 m </h2>
Explanation:
The time period of the pendulum T = 2π
here l is the length of pendulum and g is the acceleration of gravity
Thus l = 
and l = 
= 36 m approx
Answer: the frequency observed will be 1269.45hz
Explanation: according to the doppler effect,
Apparent frequency f' = (c/(c+u))*f
f = real freq of sound of moving sound source
c = speed of sound in air
u = speed of moving sound source
f' = (343/(343+33.6))*1395
f' = 1269.45hz
The humerus<span> is the only bone of the upper arm. It is a long, large bone that extends from the scapula of the shoulder to the </span>ulna<span> and radius of the lower arm. The proximal end of the </span>humerus<span>, known as the head, is a round structure that forms the ball of the ball-and-socket shoulder joint.
</span>I just got it from google normaly i would simplify it but its to simple for me to simplify again hope this helps
Explanation:
The second law states that the greater the mass of an object, the more force it will take to accelerate the object. There is even an equation that says Force = mass x acceleration or F=ma. This also means that the harder you kick a ball the farther it will go.
(a) The frequency of water wave is 2 Hz.
(b) The wave speed of the water wave is 3.6 m/s.
<u>Explanation:</u>
(a) It is known that completion of one complete wave in 1 second is defined as frequency of 1 HZ. So here there are 120 waves crossing the boat in 1 minute. So the frequency of the water wave will be
As the time is 1 minute which is equal to 60 seconds and the number of waves is given as 120 then the frequency of the water wave is
So the frequency of water wave is 2 Hz.
(b) Then if the wavelength of the water wave is 1.8 m with a frequency of 2 Hz, then speed of the wave can be determined as the product of wavelength with frequency.
So Speed = Frequency × Wavelength
Speed = 2 × 1.8 = 3.6 m/s.
So the speed of the water wave is 3.6 m/s.
