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Blizzard [7]
3 years ago
10

Plzzzzzzzzzzzzz helppppp 20 points

Physics
1 answer:
miskamm [114]3 years ago
5 0
Answer : D


I hope this helps :) have a good day
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i hope this is correct

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How are types of energy in the electromagnetic spectrum defined?
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3 years ago
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A<br> В<br> C<br> D<br> At which point will an image be formed?<br> ОА<br> Ов<br> Ос<br> OD
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oa

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2 years ago
A van has a weight of 4000 lb and center of gravity at Gv. It carries a fixed 900 lb load which has a center of gravity at Gl. I
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Answer:

 x = 25 / μ     [ ft]

Explanation:

To solve this exercise we can use Newton's second law.

Let's set a reference system where the x axis is parallel to the road

Y axis  

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       N_B + N_A = W_van + W_load

X axis

     fr = ma

     a = fr / m

the total mass is

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the friction force has the expression

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      fr = μy (W_van + W_load)

we substitute

      a = μ (W_van + W_load)    \frac{g}{W_van + W_load}

      a = μ g

taking the acceleration let's use the kinematic relations where the final velocity is zero

       v² = v₀² - 2 a x

       0 = v₀² -2a x

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        x = \frac{v_o^2}{2 \mu g}

        x = \frac{40^2}{2 \ 32 \  \mu}

        x = 25 / μ     [ ft]

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3 years ago
which of the following is true? a)speed is velocity w a vector b)speed is a scalar w direction c)speed is velocity w direction d
Aleksandr [31]

The answer is D velocity is speed w a direction

8 0
3 years ago
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