2 years ago

What is the wave speed if the period is 4.0 seconds and the wavelength is 1.8 m?

Physics

1 answer:

ELEN [110]2 years ago

7 0

Answer:

0.45 m/s

Explanation:

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Part 1: A rope has one end tied to a vertical support. You hold the other end so that the rope is horizontal. If you move the en

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c. 2 m/s

Explanation:

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$v=f \lambda$

where

v is the speed of the wave

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So, the speed of the wave is

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Increasing until terminal velocity is reached

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3 years ago

What is the unit of pressure? Why is it called a derived unit?<br>Why has SI system

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An ice cube of mass 50.0 g can slide without friction up and down a 25.0 degree slope. The ice cube is pressed against a spring

BlackZzzverrR [31]

Answer:

a) $s = 0.603\,m$ , b) $s = 2.412\,m$

Explanation:

a) The system ice cube-spring is modelled by means of the Principle of Energy Conservation. Let assume that height at the bottom is zero:

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$s = \frac{k\cdot x^{2}}{2\cdot m\cdot g \cdot \sin \theta}$

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b) The distance travelled by the ice cube is:

$s = \frac{(25\,\frac{N}{m} )\cdot (0.2\,m)^{2}}{2\cdot (0.05\,kg)\cdot (9.807\,\frac{m}{s^{2}} )\cdot \sin 25^{\textdegree}}$

$s = 2.412\,m$

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3 years ago

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