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Scilla [17]
4 years ago
6

Plz guys I again need help

Physics
2 answers:
Deffense [45]4 years ago
8 0
D


Explanation: mutualism regards to family or one another
lara [203]4 years ago
7 0

Answer:

idk

Explanation:

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4 years ago
A student observes a shadow move across the sun during a solar eclipse. Which list represents the position of Earth, the sun, an
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3 0
3 years ago
You want to lean your dad's ladder on a smooth wall. If the mass of ladder is 4.42 kg and coefficient
iren [92.7K]

Answer:

angle minimum   θ = 41.3º

Explanation:

For this exercise let's use Newton's second law in the condition of static equilibrium

    N - W = 0

    N = W

The rotational equilibrium condition, where we place the axis of rotation on the wall

We assume that counterclockwise rotations are positive

     fr (l sin θ) - N (l cos θ) + W (l/2 cos θ) = 0

     

the friction force formula is

     fr = μ N

     fr = μ W

we substitute

      μ m g l sin θ - m g l cos θ + mg l /2   cos θ = 0

      μ sin θ - cos θ + ½ cos θ= 0

         

       μ sin θ - ½ cos θ = 0

       sin θ / cos θ = 1/2 μ

       tan θ = 1/2 μ

       θ = tan⁻¹ (1 / 2μ)

       θ = tan⁻¹ (1 (2 0.57))

      θ = 41.3º

7 0
3 years ago
What is a load force
vladimir2022 [97]

Answer:

A push or pull exerted on an object

8 0
4 years ago
A useful tool for recoding observations for later analysis is a. This is for science
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5 0
3 years ago
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