Help please science kids

Physics

1 answer:

IceJOKER [234]3 years ago

6 0

It helps because it's being transported blah blah whatever the last person said when you first asked this question

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Which of the following best defines insulator?

aliya0001 [1]

Answer:

A substance with low ability or no ability to conduct energy.

Such as Rubber,Silicone,Plastic

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3 years ago

Help<br> How much current will flow when a 120 V power supply is connected to a 30<br> resistor ?

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Current= voltage divided by resistance
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2 years ago

Which statement describes the atomic number?<br>

Vadim26 [7]

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A completely inelastic collision occurs between two balls of wet putty that move directly toward each other along a vertical axi

Marrrta [24]

Answer:

h = 2.64 meters

Explanation:

It is given that,

Mass of one ball, $m_1=3\ kg$

Speed of the first ball, $v_1=20\ m/s$ (upward)

Mass of the other ball, $m_2=2\ kg$

Speed of the other ball, $v_2=-12\ m/s$ (downward)

We know that in an inelastic collision, after the collision, both objects move with one common speed. Let it is given by V. Using the conservation of momentum to find it as :

$V=\dfrac{m_1v_1+m_2v_2}{m_1+m_2}$