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miss Akunina [59]
3 years ago
12

You are riding on a school bus and suddenly get thrown forward . what did the buss just do

Physics
2 answers:
Ilia_Sergeevich [38]3 years ago
5 0
B i think is the answer
larisa86 [58]3 years ago
5 0
B is the answer its the only one that is correct
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Time period = time/no. of waves = 6/3 = 2s
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3 years ago
Which best symbolizes the hydrogen bonding between two water molecules?
Artemon [7]

The best symbolizes the hydrogen bonding between two water molecules is given in the diagram.

<h3 /><h3>What is hydrogen bonding?</h3>

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2 years ago
A uniform plank of mass 10kg and length 10m rests on two supports, A and B as shown. A boy of weight 500N stands at a distance o
kifflom [539]

Answer:

U² = 142.86 N

U¹ = 357.14 N

Explanation:

Taking summation of the moment about point A, we get the following equilibrium equation: (taking clockwise direction as positive)

W(2\ m) - U^2(7\ m) = 0

where,

W = weight of boy = 500 N

U² = reaction ay B = ?

Therefore,

(500\ N)(2\ m)-(U^2)(7\ m)=0\\U^2=\frac{1000\ Nm}{7\ m}\\

<u>U² = 142.86 N</u>

Now, taking summation of forces on the plank. Taking upward direction as positive, for equilibrium position:

W-U^1-U^2=0\\500\ N - 142.86\ N = U^1\\

<u>U¹ = 357.14 N</u>

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3 years ago
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Do you have a picture then I could determine 1 millimeter
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Hope this helps!</span>
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3 years ago
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