PHYSICS MIDDLE SCHOOL

Displacement vectors of 4 km south, 2 km north, 5 km south, and 5 km north combine to atotal displacement of
16 km north.
11 km west.
6km south.
2 km south

Answers

Answer 1
Answer:

Answer:

The displacement = 2 km south.

Explanation:

Given:

Displacement vectors.

  • (i) Of 4 km south.
  • (ii) 2 km north.
  • (iii) 5 km south.
  • (iv) 5 km north.

Total displacement :Displacement is the shortest distance from the initial point of any vector.

We have to work this in a Cartesian co-ordinate where we have y axis as North and South (negative y-axis).

Lets move 4 km towards south that is 4 units on negative y-axis.

The points will be (0,-4).

Now move 2 km upward (towards north) that is toward positive y-axis.

So the points are (0,-2).

From here again 5 km downward (towards south).

Points of the co-ordinates are (0,-7).

Finally move 5 km upwards (towards north).

Points of the Cartesian are (0,-2).

So (0,-2) means that the displacement vector is toward south and is 2 km way from the origin that is (0,0).

Total displacement is of 2 km in south.

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Answers

Answer:

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Answers

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Answers

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Answers

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Hope this helps :)

Scientist A believes she has discovered a new procedure that is better than a procedure currently in use by physicians. She tests her procedure on several occasions and achieves excellent results. Her procedure could be accepted as the best when a community of scientists A) accept Scientist A’s procedure automatically because of her credentials. B) carry on further discussion, using many trials if experimentation is needed. C) carry on further discussion, using only a few trials if experimentation is needed. D) reject Scientist A’s procedure; once a procedure is put into place, it can’t be altered with new evidence.

Answers

Answer:

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Explanation:

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Answer:

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Answers

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