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alexandr1967 [171]
3 years ago
14

What is the magnitude of vector K ?

Physics
1 answer:
vovangra [49]3 years ago
3 0

Answer:

Vector K = 8 m

Explanation:

The given figure shows a right angle triangle JKL. It is given that :

vector L = 10 m

vector J = 6 m

We have to find vector k. We can find it by using Pythagoras theorem. According to this theorem, the sum of squares of perpendicular and the base is equal to the square of the longest side.

L^2=K^2+J^2

K^2=L^2-J^2

K^2=(100)^2-(6)^2

K = 8 m

Hence, the magnitude of vector K is 8 m.

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Norma-Jean [14]

Answer:

2.52 m/s

Explanation:

When the man takes a step, his foot is stationary while his body revolves around it.  At the point when his body is directly above his foot, there will be no normal force at his maximum speed.

Sum of the forces in the radial direction:

∑F = ma

mg = m v² / r

g = v² / r

v = √(gr)

Given that r = 0.650 m:

v = √(9.8 m/s² × 0.650 m)

v = 2.52 m/s

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cestrela7 [59]

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5 0
3 years ago
I need help plz and thank you this is due
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Grow up man, this is completely based on your curriculum, we would need your book to answer, and this has to be done by you.

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3 years ago
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When a guitar string is plucked, in what direction does the wave travel? In what directions does the string vibrate?
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3 years ago
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B. Jerome plays middle linebacker for South's varsity football team. In a game against
weqwewe [10]

Answer:

Option D

670 Kg.m/s

Explanation:

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Final momentum is also mv but v being westward direction, we take it negative

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Impulse=change in momentum=664.2 Kg.m/s rounded off as 670 Kg.m/s

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