What is the net displacement of the particle between 0 seconds and 80 serving seconds

1 answer:

6 0

Science and Math questions are almost always answered
using the given information. There isn't any of that here and,
just as we'd expect, it's not possible to answer the question
without it.

This question is exactly as if I asked you: How many inches
did I grow between 1953 and 1965 ?

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A string has an abrupt change in linear density at its midpoint so that the speed of a pulse on the left side is 2/3 of that on

goldenfox [79]

Answer:

Explanation:

a) Linear density is greater on the left side because the velocity of wave in a string is inversely proportional to the linear mass density of the string

b) We should start pulse from the left hand side so the reflected wave does not get inverted because the wave traveling from the denser to lighter medium gets reflected in the same phase.

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a vector has an x-component of 19.5m and a y-component of 28.4m. Find the magnitude and direction of the vector

Delicious77 [7]

Answer:

magnitude=34.45 m

direction= $55.52\°$

Explanation:

Assuming the initial point P1 of this vector is at the origin:

P1=(X1,Y1)=(0,0)

And knowing the other point is P2=(X2,Y2)=(19.5,28.4)

We can find the magnitude and direction of this vector, taking into account a vector has a initial and a final point, with an x-component and a y-component.

For the magnitude we will use the formula to calculate the distance $d$ between two points: