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VARVARA [1.3K]
2 years ago
6

How are scientific theories different than laws or hypotheses?

Physics
2 answers:
Veronika [31]2 years ago
7 0

Answer:

A

Explanation:

Hope this helps you

Nina [5.8K]2 years ago
3 0

Answer:The answer is A

Explanation:

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Which formula is used to calculate average velocity?
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Explanation:

<h3>for average velocity we use this formula                                                                                           V                                   Vavg =V1+V2<u><em>÷</em></u><u>2</u></h3>
5 0
3 years ago
One particle has a charge of -1.87 x 10-9 C, while another particle has a charge of -1.10 x 10-9 C. If the two particles are sep
bogdanovich [222]

Answer:D 7.41 x 10-6 N

Explanation: AP*X

5 0
2 years ago
Mechanical advantage of a machine can be increased by designing it for:
Tems11 [23]

Answer:(4).

Explanation:

8 0
3 years ago
Which sentence in the passage describes retrograde motion of a planet
Soloha48 [4]

Answer:

what is the passage? I don’t see it

Explanation:

4 0
3 years ago
You may have noticed runaway truck lanes while driving in the mountains. These gravel-filled lanes are designed to stop trucks t
kati45 [8]

Answer:

The  coefficient of kinetic friction  \mu_k =  0.724

Explanation:

From the question we are told that

   The  length of the lane is  l =  36.0 \  m

    The speed of the truck is  v  =  22.6\  m/s

     

Generally from the work-energy theorem we have that  

    \Delta KE  =   N  *  \mu_k *  l

Here N  is the normal force acting on the truck which is mathematically represented as

     \Delta KE is the change in kinetic energy which is mathematically represented as

        \Delta KE =  \frac{1}{2} *  m *  v^2

=>     \Delta KE =  0.5  *  m *  22.6^2

=>      \Delta KE =  255.38m

        255.38m =    m *  9.8  *  \mu_k *   36.0

=>     255.38  =    352.8  *  \mu_k

=>   \mu_k =  0.724

 

6 0
3 years ago
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