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Blizzard [7]
3 years ago
7

What intitial action is the reason behind beginning a scientific investigation

Physics
1 answer:
Nataly [62]3 years ago
7 0
To come to a conclusion would be the initial action that would be the reason behind beginning a scientific investigation. 

When you want to prove your point and come to a conclusion, you would start an investigation. Your conclusion helps you form a ending statement. 
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Answer:

a) y = 0.0075 m

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See attachment for the solution

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3 years ago
B)A man walks 95 km, East, then 55 km, north. Calculate his RESULTANT
Varvara68 [4.7K]

The resultant displacement of the man is 109.77 km in the direction N60°E.

<h3>Displacement</h3>

Displacement is the distance travelled in a specified direction.

To calculate displacement, the straight line from starting point to end point of travel is taken and calculated.

<h3>Resultant displacement of the man </h3>

In the example above, a man walks 95 km, East, then 55 km, north.

The two distances form a right-angled triangle with two sides 95 and 55 units. The hypotenuse gives the resultant displacement, D.

Using Pythagoras rule:

D^2 = 95^2 + 55^2

D^2 = 12050

D = 109.77

Thus, the resultant displacement is 109.77 km

To calculate the direction:

Let the direction be y

y + x = 90°

tan x = 55/95

tanx x = 0.578

x = 30°

Then, y = 90 - 30

y = 60°

Therefore, the resultant displacement of the man is 109.77 km in the direction N60°E.

Learn more about displacement at: brainly.com/question/321442

8 0
2 years ago
Human skin color varies widely around the world, and children do not always exhibit the exact same coloring as their parents. Ba
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2 years ago
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