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labwork [276]
3 years ago
12

Ruby was training for a race at the high school track. She took her dog walked 2250 meters in 15 minutes. Calculate the average

speed
Physics
1 answer:
Sedbober [7]3 years ago
4 0

Answer:

Average speed = 2.5 meter per second

Explanation:

Given

The total distance walked = 2250 meters

The total time taken to walk 2250 meters is 15 minutes

In one minute there are 60 seconds

As we know Average speed is equal to total distance travelled divided by total time taken

Hence,

Average speed

\frac{2250}{15*60} \\2.5meter per second

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A transverse mechanical wave is traveling along a string lying along the x-axis. The displacement of the string as a function of
Wewaii [24]

(1) The wavelength of the wave is 1.164 m.

(2) The  velocity of the wave is 23.7 m/s.

(3) The maximum speed in the y-direction of any piece of the string is 6.14 m/s.

<h3> Wavelength of the wave</h3>

A general wave equation is given as;

y(x, t) = A sin(Kx - ωt)

<h3>Velocity of the wave</h3>

v = ω/K

From the given wave equation, we have,

y(x, t) = 0.048 sin(5.4x - 128t)

v = ω/K

where;

  • ω corresponds to 128
  • k corresponds to 5.4

v = 128/5.4

v = 23.7 m/s

<h3>Wavelength of the wave</h3>

λ = 2π/K

λ = (2π)/(5.4)

λ = 1.164 m

<h3>Maximum speed of the wave</h3>

v(max) = Aω

where;

  • A is amplitude of the wave
  • ω is angular speed of the wave

v(max) = (0.048)(128)

v(max) = 6.14 m/s

Thus, the wavelength of the wave is 1.164 m.

The  velocity of the wave is 23.7 m/s.

The maximum speed in the y-direction of any piece of the string is 6.14 m/s.

Learn more about wavelength here: brainly.com/question/10728818

#SPJ1

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A) An electrical resistor  


Hope that helps, Good luck! (:
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