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Rus_ich [418]
3 years ago
14

When did the story happen of paragraph ​

Physics
1 answer:
-BARSIC- [3]3 years ago
6 0

Answer:

1. The story happens at Masayahin Senior High School,during his first class in grade 11.

2. The transitional divices are used is At first,then,after a year, in the end.

3. I entered the class and jasper offered me a seat.

4. A story.

5. in chronological orde

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How does an atom of chlorine-37 become a chloride ion with a -1 charge?
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Answer:

B. The atom gains 1 electron, to make a total of 18 electrons.

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a ship travels a port p and travels 30 km due north. then it changes course and travels 20 km in a direction  30° east of north
liq [111]

When we represent what is given to us on a coordinate plane, we have a figure as shown in the attachment.

To find the distance between P and R, we have to find the Net Displacement of the ship (brown arrow in the figure).

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We see that the first displacement D_{1} = 30 km (blue arrow) is along the y-axis, but the second part of the ship's journey D_{2} = 20 km (red arrow) is at an angle with reference to y-axis.

So, we first find the components of the red arrow along X and Y.

Component of D_{2} along X-axis is given by  D_{2x}  = D_{2} Sin 30 = 10 km

Component of D_{2} along Y-axis is given by  D_{2y}  = D_{2} Cos 30 = 17.32 km

We now add all the vectors along X and along Y separately.

Net Displacement along X  D_{netX} = 10 km

Net Displacement along Y D_{netY} = 30 + 17.32 = 47.32 km

Now that we have the components of the net displacement along X and Y, we make use of Pythagorean Theorem to calculate the D_{net}

D_{net}  = \sqrt{D_{netX} ^{2} + D_{netY} ^{2}}

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