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poizon [28]
3 years ago
11

Tammy leaves the office, drives 26 km due

Physics
1 answer:
fredd [130]3 years ago
4 0

Answer:

72.98 km

Explanation:

Her displacement is simply the distance from her final position to her initial position.

Now, I've drawn and attached a triangle diagram to depict this her movement.

Point O is her initial starting point.

Point A is the first point she gets to after travelling north while point B is the final point after travelling north east.

From the triangle, the displacement will be the distance OB which is denoted by x and can be solved from cosine rule.

Thus;

x² = 62² + 26² - 2(62 × 26)cos 120

x² = 4520 + 806

x² = 5326

x = √5326

x = 72.98 km

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Explanation:

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A toy rocket is launched with an initial velocity of 12.0 m/s in the horizontal direction from the roof of a 30.0-m-tall buildin
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Solution :

The motion in the y direction.

The time taken by the toy rocket to hit the ground,

$S=ut+\frac{1}{2}at^2$

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Upon integration 'v' with respect to 't'

$v=\frac{1.6t^2}{2}+12$

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$s=\frac{1.6t^3}{6}+12 t$

$s=\frac{1.6(2.47)^3}{6}+12 (2.47)$

  = 0.0176+29.64

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Therefore, the toy rocket will hit the ground at 29.65 m from the building.

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3 years ago
Which characteristic of a sound wave is directly related to the loudness of the sound?
aniked [119]
The amplitude of a sound wave is directly related to the loudness of the sound. 
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