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vazorg [7]
3 years ago
11

Select the correct answer.

Physics
1 answer:
denis-greek [22]3 years ago
5 0

Answer:

D) 100 kilometres/hour.

Explanation :

<u>Given</u><u> </u><u>-</u>

  • Displacement = 200 km
  • Time taken = 2 hrs.

<u>To find</u><u> </u><u>-</u>

  • Average velocity of the car.

<u>Solu</u><u>tion</u><u> </u><u>-</u>

★ Velocity = displacement/time

→ V = 200/2

→ v = 100 km/h

<u>There</u><u>fore</u><u>,</u><u> </u><u>the</u><u> </u><u>average</u><u> </u><u>veloci</u><u>ty</u><u> </u><u>of</u><u> </u><u>the</u><u> </u><u>car</u><u> </u><u>is</u><u> </u><u>1</u><u>0</u><u>0</u><u> </u><u>km</u><u>/</u><u>h</u><u>.</u>

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riadik2000 [5.3K]

Answer:

(a) have greater resistance

Explanation:

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Remember that and you can do all of the related exercises.

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5 0
4 years ago
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What is a disruption or change that is happening to the body that causes it to sweat ?
ivann1987 [24]

Answer:

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4 0
4 years ago
Create the following matrix H:
sladkih [1.3K]

Answer:

a) {[1.25  1.5  1.75  2.5  2.75]

    [35  30  25  20  15]  }

b) {[1.5  2  40]

    [1.75  3  35]

    [2.25  2  25]

    [2.75  4  15]}

Explanation:

Matrix H: {[1.25  1.5  1.75  2  2.25  2.5  2.75]

                [1  2  3  1  2  3  4]

                [45  40  35  30  25  20  15]}

Its always important to get the dimensions of your matrix right. "Roman Columns" is the mental heuristic I use since a matrix is defined by its rows first and then its column such that a 2 X 5 matrix has 2 rows and 5 columns.

Next, it helps in the beginning to think of a matrix as a grid, labeling your rows  with letters (A, B, C, ...) and your columns with numbers (1, 2, 3, ...).

For question a, we just want to take the elements A1, A2, A3, A6 and A7 from matrix H and make that the first row of matrix G. And then we will take the elements B3, B4, B5, B6 and B7 from matrix H as our second row in matrix G.

For question b, we will be taking columns from matrix H and making them rows in our matrix K. The second column of H looks like this:

{[1.5]

[2]

[40]}

Transposing this column will make our first row of K look like this:

{[1.5  2  40]}

Repeating for columns 3, 5 and 7 will give us the final matrix K as seen above.

4 0
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Answer:

Explained

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I think it is just potential

Explanation:

If it’s right pls mark the brainliest

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