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3 years ago

A wave has a frequency of 46 Hz and a wavelength of 1.7 meters. What is the speed of this wave?

Physics

2 answers:

Sunny_sXe [5.5K]3 years ago

8 0

Answer:

v = 78.2m/s

Explanation:

Check attachment below

Andrej [43]3 years ago

7 0

Explanation:

wavespeed=frequency x wavelength

you only need to 46hz*1.7m which equals

78.2m/s

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2 years ago

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Luda [366]

Answer:

86.5m

Explanation:

first convert km/h

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2 years ago

A 67 kg soccer player uses 5100 kJ of energy during a 2.0 h match. What is the

Oksanka [162]

The average power produced by the soccer player is 710 Watts.

Given the data in the question;

Mass of the soccer player; $m = 67kg$

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Power is simply the amount of energy converted or transferred per unit time. It is expressed as:

$Power = \frac{Energy\ converted }{time}$

We substitute our given values into the equation

$Power = \frac{5100000J}{7200s}\\\\Power = 708.33J/s \\\\Power = 710J/s \ \ \ \ \ [ 2\ Significant\ Figures]\\\\Power = 710W$

Therefore, the average power produced by the soccer player is 710 Watts.

Learn more: brainly.com/question/20953664

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2 years ago

What happens to the coefficient of friction when the weight is increased? Why is this?

Crazy boy [7]

Answer:

Usually the coefficient of friction remains unchanged

Explanation:

The coefficient of friction should in the majority of cases, remain constant no matter what your normal force is. When you apply a greater normal force, the frictional force increases, and your coefficient of friction stays the same. Here's another way to think about it: because the force of friction is equal to the normal force times the coefficient of friction, friction is increased when normal force is increased.

Plus, the coefficient of friction is a property of the materials being "rubbed", and this property usually does not depend on the normal force.

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3 years ago

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A. It increases... but slightly. Good luck!

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3 years ago