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Bezzdna [24]
3 years ago
8

A wave with a frequency of 56 Hz has a wavelength of 27 meters. At what speed will this wave travel?

Physics
1 answer:
PIT_PIT [208]3 years ago
7 0
Velocity=frequency x wavelength
=56 x 27
=1512m/s
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A carnival game consists of a two masses on a curved frictionless track, as pictured below. The player pushes the larger object
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Answer:

v₁₀ = 1.90 m / s

Explanation:

In this exercise we are given the maximum height data, with energy we can know how fast the body came out

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Initial mechanical energy, in the lower part of the track

    Em₀ = K = ½ m v²

    Em=   Em_{f}

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Now we can use the moment to find the speed with which objects collide

The large object has a mass M = 5.41 kg a velocity starts v₁₀, the small object has a mass m = 1.68 kg an initial velocity of zero v₂₀ = 0 and  final velocity v

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Final after the crash

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Let's write the system of equations

    M v₁₀ = M  v_{1f} + m v

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We cleared v1f in the first we replaced in the second

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    M v₁₀² = M (M v₁₀ - mv)² / M² + m v²

    M v₁₀² = 1 / M (M² v₁₀² - 2mM v v₁₀ + m² v²) +m v²

     v₁₀² (M - M) + 2 m v v₁₀ - v² (m2 + m) / M = 0

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Let's substitute the value of v

     v1₁₀= √ (2gh) (m +1) / (2M)

Let's calculate

    v₁₀ = √ (2 9.8 3) (1+ 1.68) / (2  5.41)

    V₁₀ = 7.668 (2.68) / 10.82

   v₁₀ = 1.90 m / s

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3 years ago
Electromagnets can be used to lock doors. How could an engineer increase the strength of an electromagnetic lock? Check all that
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The greatest variation in size, mass, and luminosity occurs in elliptical galaxies.

<h3>What is Variation?</h3>

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Read more about Elliptical galaxies here brainly.com/question/24985948

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What is the magnitude of the kinetic frictional force
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