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2 years ago

The periodic wave in the diagram below has a frequency of 80. hertz.

Physics

1 answer:

ASHA 777 [7]2 years ago

6 0

Answer:

hi how are you

2) 5/8

4) 5/8

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A. 25%<br> B. 20%<br> C. 10%<br> D. 80%<br> please show work :)

Setler79 [48]

Substitute your values into the formula:

W = Work done = 288

$Q_{in}$ = 360

Solve to find e:

e = 288 ÷ 360 = 0.8

Convert e to a percentage by multiplying by 100.

0.8 × 100 = 80

4 0

3 years ago

A boy rides his bike 15m due east and then 33m due north. Find his displacement

Svetllana [295]

Take a right triangle and apply pythagorean theorem where the displacement is the hypotenuse:
We get 36.25m

8 0

3 years ago

Lightning occurs when there is a flow of electric charge (principally electrons) between the ground and a thundercloud. The maxi

Korolek [52]

Answer:

2C charge will flow from ground and cloud

Explanation:

We have given rate rate of flow of charge $\frac{dq}{dt}=20000C/sec$

Time is given as $t=100\mu sec=100\times 10^{-6}=10^{-4}sec$

WE have to find the how much charge flows between the ground and cloud in this time

So the charge flow is given by $\frac{dq}{dt}\times t=20000C/sec\times 10^{-4}=2C$

So 2C charge will flow from ground and cloud

8 0

3 years ago

A runner taking part in the 200 m dash must run around the end of a track that has a circular arc with a radius of curvature of

nlexa [21]

Answer:

$a_c=1.44\ m/s^2$

Explanation:

<u>Centripetal Acceleration</u>

It's the acceleration that an object has when traveling on a circular path to take into consideration the constant change of velocity it must have in order to keep going in the circular path.

Being v the tangent speed, and r the radius of curvature of the circle, then the centripetal acceleration is given by

$\displaystyle a_c=\frac{v^2}{r}$

We can compute the value of v by using the distance and the time taken to travel:

$\displaystyle v=\frac{x}{t}=\frac{200\ m}{26.4\ s}$

$v=7.58\ m/s$

Now we calculate the centripetal acceleration

$\displaystyle a_c=\frac{7.58^2}{40}=1.44\ m/s^2$

$\boxed{a_c=1.44\ m/s^2}$

4 0

3 years ago

So if any of ya got like, screenshots of all the answers for Edge, 2020. Lab-Kinetic Energy-student guide, That would be really

Nikolay [14]

Answer:

guys pls nser his answer his question quick

Explanation:

7 0

3 years ago

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