3 years ago

A yo-yo is twirled on a 4 meter long string so that its tangential

Physics

1 answer:

Veseljchak [2.6K]3 years ago

7 0

Answer:

8m/s

Explanation:

i think i had this question on a test i'm taking so i'm assuming i cannot say for sure if this is correct

You might be interested in

Match the correct percentage of water to the correct phrase

Nesterboy [21]

Answer:

Explanation:

get a life <3

5 0

3 years ago

Please answer this question

belka [17]

ANSWER is c

HOPR THIS WILL BE HELPFUL

8 0

3 years ago

"Darwin's finches" reside on the Galapagos Islands. Each species has a different type of beak, however, they can all be traced b

Ivahew [28]

It would be adaptation because the finches live in different islands and each have different weather and resources

3 0

3 years ago

Read 2 more answers

Which sediments typically make up the C horizon?

Nastasia [14]

B) sand, silt, and clay!

5 0

4 years ago

Read 2 more answers

Yellow light of wavelength 590 nm passes through a diffraction grating and makes an interference pattern on a screen 80 cm away.

riadik2000 [5.3K]

Answer:B

Explanation:

Given

Wavelength of light $\lambda =590\ nm$

Screen distance $L=80\ cm$

First fringe is at a distance $y_1=1.9\ cm$

No of lines per mm is given by N

$N=\frac{1}{d}$

where d=slit width

From N-slits Experiment

$\sin \theta _m=\frac{m\lambda }{d}$

$d=\frac{m\lambda }{\sin \theta _m}-----1$

Position of bright fringe is given by

$y=\tan \theta _m\cdot L$

$\tan \theta _m=\frac{y}{L}$

$\theta _m=\tan^{-1}(\frac{y}{L})$

Put the value of $\theta _m$ in eq. 1

$d=\frac{m\lambda }{\sin (\tan^{-1}(\frac{y}{L}))}$

Therefore $N=d^{-1}$

$N=\frac{\sin (\tan^{-1}(\frac{y}{L}))}{m\lambda }$

for $m=1$

$N=\frac{\sin (\tan^{-1}(\frac{1.9\times 10^{-2}}{0.8}))}{1\times 590\times 10^{-9}}$

$N=40243\ line/m$

$N=40\ line/mm$

4 0

4 years ago