3 years ago

What is the length x of the side of the triangle below? (Hint: use the cosine function.)

1 answer:

7 0

A because that is the answer

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Tcecarenko [31]

Explanation:

Below is an attachment containing the solution.

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3 years ago

maksim [4K]

Answer: 4 s

Explanation:

Given

The applied force is 70 N

mass of the rock is 28 kg

initial velocity $u=25\ m/s$

final velocity $v=15\ m/s$

Deceleration provided by force is

$a=-\dfrac{70}{28}=-2.5\ m/s^2$

using the equation of motion

$v=u+at\\\Rightarrow 15=25-2.5t\\\Rightarrow 2.5t=10\\\Rightarrow t=4\ s$

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3 years ago

Alla [95]

Answer:

one-half of A'

Explanation:

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3 years ago

Nookie1986 [14]

The periodic sign of magnesium is ------> mg

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pentagon [3]

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3 years ago