Consider the following wave function in SI units:
ΔP(x, t) = (24.0 / r) sin(1.35r - 2050t)
Include answers to such questions as the following and give representative values for any quantities that can be evaluated. (Assume that the wave is moving through the water at 25°C.)
(a) Does the wave move more toward the right or the left?
(b) Find its wavelength.
(c) Find its speed.
(d) Find its frequency.

(a) right

(b) λ = 4.65m

(c) v = 1519m/s

(d) f = 327Hz

Explanation:

The characteristic sinusoidal pressure fluctuation equation for a wave traveling to the right is given as

P(x,t) = BkASin(kx-ωt)

Where

B = Bulk modulus

k = wave number

A = displacement amplitude

x = position on the x-axis

ω = angular frequency

t = time t

(a) the wave is travelling to the right

(b) from the given equation

ΔP(x,t) = (24.0 / r) sin(1.35r - 2050t)

1.35 compares with k

So k = 1.35rad/m

And k = 2π/ λ

λ = 2π/k = 2π/1.35 = 4.65m

(c) ω =kv

From the given equation ω = 2050 rad/s

v = ω/k = 2050/1.35 = 1519m/s

(d) f = v/λ =1519/4.65 = 327Hz

b.

explanation:

10.0

what experimental evidence led scientists to change from the previous model to this one?

a few of the positive particles aimed at a gold foil seemed to bounce back.

the colors of light emitted from heated atoms had very specific energies.

experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.