C. The pressure decreases, and we can precisely predict by how much.
Answer:
(a.) 4z
(b.) 4w
Explanation:
From the equation y=4zcos(8πwt), where z and w are positive constants.
Comparing this equation to the equation of a wave y = Acos(Wt), where A is the amplitude (largest distance from equilibrium) and W is the angular frequency (W=2πf)
(a.) Comparing our wave equation with the given equation, we see that A = 4z in this case (furthest distance of the mass from equilibrium)
(b.) Comparing similarly we can see from our given equation that angular frequency W =8πw we also know that W = 2πf from our wave equation, therefore 2πf = 8πw
Solving for f we have f = 8πw÷2π
f = 4w (Proves our second answer because the frequency is the number of oscillations completed per second)
More convenient
More commonly used
Answer:
A) The net force
Explanation:
If two forces of equal strength act on an object in opposite directions, the forces will cancel, resulting in a net force of zero and no movement.
The way the sound waves hit your eardrums and they are moved by the sound pressure. Then your brain takes over from there.
