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3 years ago

Two identical charged pith balls are brought together to touch each other. They are then

Physics

1 answer:

sergejj [24]3 years ago

4 0

Answer:

-17.5 nC

Explanation:

charge A = -30 nC

charge B = -5 nC

After adding them it would be the average of the two charges because of the getting same voltage difference. so

c = (-30+(-5)) / 2 nC

c= -17.5 nC

answer is -17.5 nC

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3 years ago

Suppose a clay model of a koala bear has a mass of 0.205 kg and slides on ice at a speed of 0.720 m/s. It runs into another clay

Westkost [7]

Answer:

Final velocity, v = 0.28 m/s

Explanation:

Given that,

Mass of the model, $m_1=0.205\ kg$

Speed of the model, $u_1=0.72\ m/s$

Mass of another model, $m_2=0.32\ kg$

Initial speed of another model, $u_2=0$

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Final velocity

Solution,

Let V is the final velocity. As both being soft clay, they naturally stick together. It is a case of inelastic collision. Using the conservation of linear momentum to find it as :

$m_1u_1+m_2u_2=(m_1+m_2)V$

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$V=\dfrac{0.205\times 0.72+0.32\times 0}{(0.205+0.32)}$

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3 years ago

Number 2<br> Is the answer is right?

garik1379 [7]

In question 2
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3 years ago

While you are in a bus that moves at 100 km/h you walk from the back to the front at 10 km/h. What is your speed relative to the

aleksklad [387]

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2 years ago