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3 years ago

14

Muscles that are fatigued ____. A. Are injured , B. Should always be rested , C. Can sometimes be exercised further D. Should be

stretched

2 answers:

Lorico [155]3 years ago

5 0

Answer:

<u>B. Should be rested</u>

Explanation:

That is the only reasonable answer.

Anestetic [448]3 years ago

4 0

Answer:

d

Explanation:

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What is the speed of a wave that has a wavelength of 0.4 m and a frequency of 10 Hz

Shkiper50 [21]

<span>speed = wavelength x frequency
speed = 0.4m X 10 Hz
speed = 4 m/s</span>

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2 years ago

The coach has not seen improvement as expected in his team and plans to change practice session. To help the players he changes

Allushta [10]

Answer:

progession

Explanation:

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3 years ago

How do magnetic trains work and what advantages do they have compared to regular trains

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Answer:

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3 years ago

Two stationary positive point charges, charge 1 of magnitude 3.90 nC and charge 2 of magnitude 1.80 nC, are separated by a dista

soldi70 [24.7K]

Answer:

$v = 7793150 m/s$

Explanation:

First, we are going to calculate the electrical potential in the point middle between the two charges

Remember that the electrical potential can be calculated as:

$v = \frac{kQ}{r}$

Where $k = 8.9874 x 10^{9} \frac{Nm^{2} }{C^{2} }$

and it is satisfy the superposition principle, thus

$v = \frac{8.9874x10^{9}(3.90x10^{-9} ) }{0.23} + \frac{8.9874x10^{9}(1.80x10^{-9} ) }{0.23}$

$v = 222.73v$

The electrical potential at 10 cm from charge 1 is:

$v = \frac{8.9874x10^{9}(3.90x10^{-9} ) }{0.1} + \frac{8.9874x10^{9}(1.80x10^{-9} ) }{0.36}$

$v = 395.44 v$

Since the work - energy theorem, we have:

$q\Delta v = \frac{mv^{2} }{2}$

where q is the electron's charge and m is the electron's mass

Therefore:

$v = \sqrt{\frac{2q\Delta v}{m} }$

$v = 7793150 m/s$

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3 years ago

A friend has written to you informing you that she/he giving him/her the name of some place in nepal

sleet_krkn [62]

Answer:

The answer is below

Explanation:

Dear Friend,

I received your letter a few days back. And because I was busy with work, I couldn't write a reply to you immediately. However, here is my well-detailed reply to your request. I hope you find it satisfactory. I am excited to learn that you wish to go on a tour to Nepal. For the advice, here is my suggestion for some places for you to visit.

1. Kathmandu: this is the capital of Nepal. It also doubles as the capital city. The atmosphere there is electric. The streets are wide and there are old monumental buildings there.

2. Bhaktapur: here you find interesting things around. It is the third-largest royal city. Durbar square is a nice place to visit.

3. Pokhara: this place has the largest population and the city is cleaner compared to most other big cities around. It has wonderful places to relax. And if you enjoy hiking this is the place for you.

4. Chitwan National Park: I know you love watching wildlife. So this is a must for you to visit. You get to see amazing animals such as rhinos, Bengal tigers, leopards, etc.

However, due to space and for me not to bore you, here are other honorable mentions

Trekking in the Langtang region, Swayambhunath, known as Monkey Temple. You should also consider the Everest & the Trek to Base Camp.

I hope you will enjoy your stay to the fullest. Don't forget to send me details of your tour after your visit.

I love you, friend.

Yours sincerely,

MyName

4 0

3 years ago