4 years ago

What conditions are required for resonance to occur?

Physics

2 answers:

Citrus2011 [14]4 years ago

7 0

Answer:

B: a wave with the same amplitude as the object's natural frequency

Explanation:

took the test

CaHeK987 [17]4 years ago

3 0

B: A Wave with the same natural wavelength as an object's frequency

You might be interested in

What is the cause of weathering

iren2701 [21]

Plant and animal life, atmosphere and water are the major causes of weathering .

5 0

3 years ago

Read 2 more answers

What is the state capital of Florida?

Nataly_w [17]

Answer:

Tallahassee

Explanation:

7 0

4 years ago

Read 2 more answers

A block of cheese is pulled on by a string and slides to the right along a rough surface.

Ulleksa [173]

Answer:

Explanation:

KHAN ACADEMY

3 0

3 years ago

A wildlife photographer uses a moderate telephoto lens of focal length 135 mm and maximum aperture f/4.00 to photograph a bear t

labwork [276]

Answer:

<h3>(A) The width $x = 0.24 \times 10^{-3}$ m</h3><h3>(B) The new width is $1.32 \times 10^{-3}$ m</h3>

Explanation:

Given :

Focal length $f = 135 \times 10^{-3} m$

Maximum aperture $D = \frac{f}{4}$

Wavelength $\lambda = 550 \times 10^{-9}$ m

(A)

From rayleigh criterion,

$\theta = \frac{1.22 \lambda }{D}$

$\theta =\frac{ 1.22 \times 550 \times 10^{-9} }{33.75 \times 10^{-3} }$

$\theta = 1.98 \times 10^{-5}$ rad

From angle formula,

$x = R\theta$

Where $R =$ 12 m ( given in example )

$x = 12 \times 1.98 \times 10^{-5}$ m

$x = 23.76 \times 10^{-5}$

$x = 0.24 \times 10^{-3}$ m

(B)

We know that $\theta$ is proportional to the $x$ and inversely proportional to the $D$

so we write the new width, here $x$ is 5.5 times larger than above case

$x = 0.24 \times 10^{-3} \times \frac{22}{4}$

$x = 1.32 \times 10^{-3}$ m

6 0

3 years ago

1. When a particle moves in a circle with constant speed, its acceleration is

omeli [17]

Answer:

Its A.

Explanation:

8 0

4 years ago