2 years ago

____________ is the number of complete movements of a wave per second.

Physics

2 answers:

Citrus2011 [14]2 years ago

8 0

hertz: A unit for measuring frequency, equal to one cycle per second. If a sound wave has a frequency of 20,000 Hz,

dangina [55]2 years ago

8 0

Answer:

it was frequencey

Explanation:

usa test pre

You might be interested in

Svetlanka [38]

Answer:

They are both extremely hot, they both produce a form of light, they both have/use fire(typically)

Explanation:

6 0

2 years ago

What are the advantages of using the metric system? SELECT ALL THAT APPLY

alexandr402 [8]

D. used by the entire scientific community

B. more accurate system of measurement

3 0

2 years ago

Problem: A barbell consists of two small balls, each with mass m at the ends of a very low mass rod of length d. The barbell is

zepelin [54]

Answer:

mass of ball 1=m1

mass of ball 2=m2

velocity of ball=r1w1

velocity of ball 2=r2w2

Total angular momentum=m1*v1+m2*v2

but

v1=r1*w1

v2=r2*w2

Substitute values in above equation

Total angular momentum of the system=m1*r1*w1+m2*r2*w2

7 0

3 years ago

Use Eq. cosϕ=R/Z to show that the average power delivered by the source in an L−R−C series circuit is given by Pav = I^2rmsR .

Evgen [1.6K]

Answer:

Explanation:

In a L C R circuit, the average power is given by

$P_{av}=V_{rms}I_{rms}Cos\phi$

As given in the question

CosФ = R / Z

And we know that

$V_{rms}=I_{rms}\times Z$

$P_{av}=I_{rms}\times Z\times I_{rms}\times \frac{R}{Z}$

$P_{av}=I_{rms}^{2}\times R$

6 0

3 years ago

Which is a factor that affects size of mineral crystals formed in magma

Natali5045456 [20]

The volcanic ashes from the volcano

6 0

2 years ago