The displacement of a wave traveling in the negative y-direction is d(y, t) = ( 4.60 cm ) sin ( 6.20 y+ 60.0 t ), where y is in m and t is in s?

Answers

photocells convert light energy to electricity

hèllo, sorry i really need some more points so if you need this qustion answered than retype it

The question is incomplete, below is the complete question

"The displacement of a wave traveling in the negative y-direction is D(y,t) = ( 4.60cm ) sin ( 6.20 y+ 60.0 t ), where y is in m and t is in s.

A) What is the frequency of this wave?

B)  What is the wavelength of this wave?

C) What is the speed of this wave?"

Answers:

a.  f=\frac{30}{\pi }Hz\\

b. wavelength=\frac{\pi }{3.1}m \\

c. v=9.68m/s

Explanation:

The equation of a wave is represented as

D(x,t)=Asin(kx+wt) \\

Where A=amplitude

w=angular frequency=2πf

K=wave numbers =2π/λ

since we re giving he equation  D(y,t) = ( 4.60cm ) sin ( 6.20 y+ 60.0 t ),

we can compare and get the value for the wave number and angular frequency.

By comparing we have

w=60rads/s

k=6.20

a. to determine the frequency, from the expression fr angular wave frequency we have

w=2πf hence

f=w/2π

if we substitute we arrive at

f=\frac{60}{2\pi }\\f=\frac{30}{\pi }Hz\\

b. to determine the wave length, we use

k=\frac{2\pi }{wavelength} \\k=6.2\\wavelength=\frac{2\pi }{k} \\wavelength=\frac{2\pi }{6.2} \\wavelength=\frac{\pi }{3.1}m \\

c. the wave speed  v is express as the product of the frequency and the wavelength. Hence

v=frequency*wavelength \\v=\frac{30}{\pi } *\frac{\pi }{3.1}\\ v=9.68m/s



Do you know the answer?

Other questions on the subject: Physics

Physics, 22.06.2019, delawdermia27
Option A)Explanation:Here we know that ball is moving horizontally so the force on the ball perpendicular to the plane must be balancedWe can say that gravitational force "mg" is b...Read More
2 more answers
Physics, 22.06.2019, dai77
electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding i...Read More
2 more answers
Physics, 22.06.2019, Terrilady5
gpe = mass x gravity constant x height or… gpe = mgh where… mass: measured in kilograms (kg) gravity: gravity constant on earth = 10.00 m/s2 height: measured in meters (m) gpe:...Read More
2 more answers
the following is queen elizabeth’s purposes: - to encourage the parliament that the technique of picking successors to the seat based merely on birthright needs to be reviewed. -...Read More
3 more answers
Physics, 23.06.2019, anashaye
scattering of light by tiny particles in air to produce the colors we see on sky, is dependent on the following factors: (i) wavelength of light(ii) size of the scattering particle...Read More
1 more answers