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zaharov [31]
4 years ago
5

In this lab, you will use a cart and a track to explore Newton’s second law of motion. You will vary two different variables and

determine how each one affects how quickly the cart moves along the track. In the space below, write a scientific question that you can answer by doing this experiment.
Physics
1 answer:
lutik1710 [3]4 years ago
6 0

Questions that can be answered by doing the experiment and making observations scientifically:

1).  How long will it take to perform the complete experiment ?

2). Will it be daytime or night-time when the experiment begins ?

3). What will be the range of outdoor temperatures during the experiment ?

4). How many times will progress of the experiment be suspended in order to take phone calls ?

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The answer to the given question above is letter "D. spectator ions". The net ionic equation is the total ionic equation with the spectator ions removed. The spectator ions are the ions that appear in both sides of the balanced chemical reaction. This means that the spectator ions are not affected by the reaction.
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What does it mean if electric field lines are close together versus farther apart ?
hoa [83]

Answer:

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Explanation:

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3 years ago
A bar slides vertically between two conducting rails without friction in a magnetic field. The rails are connected via a resisto
Gala2k [10]

Answer:

The energy dissipated is  E =  9.8 J

Explanation:

From the question we are told that

    The distance covered at constant velocity d =  2 m  

      The velocity is  v = 1.5 \ m/s

Generally at constant velocity the magnetic  force on the bar is mathematically represented as

         F  =  m * g

substituting values

        F  =   0.5 *  9.8

        F  =   4.9 \ N

The energy dissipated is mathematically evaluate as

         E =  F * d

 substituting the value

         E =  4.9  * 2

        E =  9.8 J

     

3 0
4 years ago
An element is made out of two or more different atoms chemically put together,<br> True<br> Or False
tatyana61 [14]

Answer:

true

Explanation:

it is right

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