Answer:
rad/s
Explanation:
The wave function is:
where :
k = wave number
x = position of a point on the wave
= angular frequency
t = time
What is another way to express the angular frequency (omega)
Angular frequency (omega) can be express as :
rad/s ( i.e one repetition that it takes to repeats itself)
Answer:hot air
Explanation:Hot air goes up, so when you put it in a hot air balloon fire is placed at the oppening to creat hot air and lift the balloon! :)
Answer:
12 m
Explanation:
Hi! The ecplanation is based on the figure. Lets call the mirrors M1 and M2. Your head is the triangle called A, facing towards M1
Then:
A' is the image (virtual) of A given by M1. This is the image of your face.
A'' is the image of A given by M2. This image A'' when reflected by M1 produces image A'''. This is the image of the back of your head you see. It is 12 m away of you.
Fast-moving currents of air that occur above the friction layer are called jet streams.