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Valentin [98]
4 years ago
13

How do you calculate an object's displacement?

Physics
2 answers:
algol [13]4 years ago
4 0

Answer:

Displacement can be calculated by measuring the final distance away from a point, and then subtracting the initial distance. Displacement is key when determining velocity (which is also a vector). Velocity = displacement/time whereas speed is distance/time.

Explanation:

andrezito [222]4 years ago
3 0

Answer:

We can use equations of motion

s = ut +  \frac{1}{2} at {}^{2}

v {}^{2}  =  {u}^{2}  + 2as \:

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A pendulum of length l=5.0m attached to the ceiling carries a ball of mass 10.0 kg. The ball (a massive bob) is moved from its s
never [62]

Answer:

    Em₀ = 245 J

Explanation:

We can solve this problem with the concepts of energy conservation, we assume that there is no friction with the air.

Initial energy the highest point

        Em₀ = U

        Em₀ = m g h

The height can be found with trigonometry

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         cos θ = L ’/ L

         L ’= L cos θ

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We replace

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Let's calculate

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3 0
3 years ago
A beam of light traveling in air strikes a glass slab at an angle of incidence less than 90°. After entering the glass slab, wha
ad-work [718]

Answer:

True A and B

Explanation:

Let's propose the solution of the exercise before seeing the affirmations.

We use the law of refraction

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      sin θ₂ = (n1 / n2) sin θ₁

Let's apply this equation to the case presented. The index of refraction and airs is 1 (n1 = 1)

     Sin θ₂ = (1 / n2) sin θ₁

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Let's analyze the statements time

A. False. We saw that it deviates

B. True Approaches normal (vertical axis)

C. False It deviates, but it is not parallel to normal

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8 0
3 years ago
What is the half-life of isotope X?
Brrunno [24]

Answer:

4

Explanation:

7 0
3 years ago
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