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Sliva [168]
2 years ago
15

20. GP A sinusoidal wave traveling in the negative x direction (to the left) has an amplitude of 20.0cm, a wavelength of 35.0cm,

and a frequency of 12.0Hz. The transverse position of an element of the medium at t=0, x=0 is y= 3.00 cm, and the element has a positive velocity here. We wish to find an expression for the wave function describing this wave. the wave Find (d) the angular frequency omega and
Physics
1 answer:
umka21 [38]2 years ago
7 0

The angular frequency of the wave is determined as 75.4 rad/s.

<h3>What is wave function?</h3>

A wave function is a mathematical equation for the motion of the wave.

y(x, t) = A sin(kx + ωt + Φ)

where;

  • ω is angular speed
  • k is angular wavenumber
  • Φ is phase angle

<h3>What is angular frequency?</h3>

The angular frequency is the angular displacement of any wave element per unit of time or the rate of change of the waveform phase.

<h3>Angular frequency</h3>

ω = 2πf

ω = 2π(12)

ω = 75.4 rad/s

Thus, the angular frequency of the wave is determined as 75.4 rad/s.

Learn more about angular frequency here: brainly.com/question/3654452

#SPJ4

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on a part-time job, you are asked to bring a cylindrical iron rod of density 7800 kg/m3 , length 92.8 cm and diameter 2.05 cm fr
emmainna [20.7K]

On a part-time job, you are asked to bring a cylindrical iron rod of density 7800 kg/m3 , length 92.8 cm and diameter 2.05 cm from a storage room to a machinist, the  weight of rod w is 23.41 N .

<h3>How is the weight calculated?</h3>

Given ,

density (d) = 7800 kg/m³

D = 2.05 cm = 0.0205 m

r = D/2 = 0.0205 / 2 =0.01025 m

h = 92.8 cm = 0.928 m

The weight is calculated by ,

W = m × g

But, to find mass (m)

m = d × V

The volume of the rod, because is cylindrical, is,

V = π × r² × h

∴ V = 3.14 × (0.01025)² × 0.928

∴ V = 3.14 × 1.051 × 10⁻⁴ × 0.928

∴ V = 3.0625 × 10⁻⁴

Now to calculate mass,

m = d × V

∴ m = 7800 × 3.0625 × 10⁻⁴

∴ m = 2.3887 Kg

Now, for calculating weight

W = m × g

∴ W =  2.3887 × 9.8

∴ W = 23.41 N

∴ The weight of the rod W assuming the free-fall acceleration is 23.41 N .

<h3>What is weight?</h3>
  1. The weight of an object is the force exerted on it by gravity.
  2. It is define weight as a vector quantity, the force of gravity acting on an object.
  3. Some define weight as a scalar quantity that is the magnitude of gravity.

Can learn more about weight calculation from brainly.com/question/15685221

#SPJ4

6 0
1 year ago
Figure shows four paths along which objects move from a starting point to a final point, all im the same time interval. The path
abruzzese [7]

Answer:

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3 0
3 years ago
The gradient of a displacement-time graph gives
Drupady [299]

Answer:

Velocity

Explanation:

The gradient= change in velocity

——————————

Change in time

7 0
4 years ago
What effect would the incomplete drying of a sample (for example, the incomplete removal of a recrystallization solvent) have on
antiseptic1488 [7]

Answer:

The melting point will be lowered and broadened.

Explanation:

The melting point of a substance is the temperature at which the substance changes state from solid to liquid. The incomplete drying of a sample may result in the presence of impurities. There is presence of solid sample in the solution that fails to dry. The solid sample is not fully crystallized from the solvent or any other liquid with which it can form a true solution. The presence of these impurities in a sample for example, the incomplete removal of a recrystallization solvent cause the melting point to both lowered and broadened.

4 0
3 years ago
The normal eye, myopic eye and old age
Leviafan [203]

Answer:

length f′0 when the eye is presbyopic and by a screen (the retina) at the distance d from the

Explanation:

7 0
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