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3 years ago

10

Someone pls help mee

1 answer:

Alex17521 [72]3 years ago

3 0

This claim isn’t true. This claim is trying to say that once force is being applied to Newton’s Cradle then it will forever stay in motion. However, from the excerpt we learn that this isn’t possible. As one of the balls are pushed, it is set into kinetic energy, and then that ball will hit another and send it into kinetic energy as well. However, not all of the kinetic energy is kept through this process, some of the energy is lost and converted into different forms such as sound energy. Therefore, it isn’t possible for Newton’s Cradle to stay in motion forever.

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Question in picture, just want to confirm answer.<br> Is the answer B?

guapka [62]

Answer:

Explanation:

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2 years ago

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IrinaK [193]

Answer:1265 N

Explanation:

Given

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Velocity $\left ( v\right )=90 km/h\approx 25m/s$

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mass of the motorcycle with rider $\left ( m\right )=240 Kg$

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$F_{engine}-f=ma$

$F_{engine}=f+ma$

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3 years ago

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nexus9112 [7]

Answer:

A

Explanation:

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=1/2(30kg)( 3.4 m/s)^2

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3 years ago

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Leona [35]

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Eg. water, copper wire, iron rod, some ceramic materials, metallic nail.

Insulators are materials that do not allow heat or electricity to pass through.

Eg. Book, plastic, rubber, glass, paper

Explanation:

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Sindrei [870]

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3 years ago