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2 years ago

7

A student is playing with a pendulum. He gives the ball a push and watches the ball as it swings. After a while, the ball stops

swinging.Why does the ball stop swinging?

1 answer:

julia-pushkina [17]2 years ago

4 0

A because it’s not good

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10m= (5.0) + (.5)(9.8)(5.0)

Norma-Jean [14]

M=2.45 because you multiply out the equation on the right and divide by 10

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2 years ago

The turn on voltage for forward basing a PN junction diode is within the range of

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Explanation: hope this helped

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2 years ago

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1 year ago

What is the definition of Cubit

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Answer:

See below.

Explanation:

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2 years ago

For a movie stunt, an empty truck with a mass of 2000 kg goes 10 m/s and runs into a stopped car of mass 1000 kg. the truck then

babunello [35]

ANSWER

Both trucks will move together with speed v = 6.67 m/s

so correct answer will be

The speed of the combined vehicles is less than the initial speed of the truck.

EXPLANATION

As we know that there is no external force on the system of two trucks

So here momentum of the two trucks before collision and after collision will remain same

So here we will have

$m_1v_{1i} + m_2v_{2i} = m_1v_{1f} + m_2v_{2f}$

so here we will have

$v_{1i} = 10 m/s$

$v_{2i} = 0$

$m_1 = 2000 kg$

$m_2 = 1000 kg$

now we will have

$2000\times 10 + 1000\times 0 = (2000 + 1000) v$

$v = \frac{20000}{3000} = 6.67 m/s$

so correct answer will be

The speed of the combined vehicles is less than the initial speed of the truck.

3 0

2 years ago

Read 2 more answers