3 years ago

Which statement best describes the formation of igneous rocks?

Physics

2 answers:

Cerrena [4.2K]3 years ago

8 0

b. describes it best because a form of molten cools down and makes igneous rock. Good luck! Please mark me brainliest!

Masja [62]3 years ago

8 0

The answer is b because It describes the transformation of molten materials

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It releases some of the energy into the atmosphere as hot steam.

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2 years ago

A child pushes a 75 N toy car across the floor. What is the mass of the car?

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7.6 kg

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3 years ago

Question Part Points Submissions Used A car is stopped for a traffic signal. When the light turns green, the car accelerates, in

olya-2409 [2.1K]

(a) 328.6 kg m/s

The linear impulse experienced by the passenger in the car is equal to the change in momentum of the passenger:

$I=\Delta p = m\Delta v$

where

m = 62.0 kg is the mass of the passenger

$\Delta v$ is the change in velocity of the car (and the passenger), which is

$\Delta v = 5.30 m/s - 0 = 5.30 m/s$

So, the linear impulse experienced by the passenger is

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(b) 404.7 N

The linear impulse experienced by the passenger is also equal to the product between the average force and the time interval:

$I=F \Delta t$

where in this case

$I=328.6 kg m/s$ is the linear impulse

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Solving the equation for F, we find the magnitude of the average force experienced by the passenger:

$F=\frac{I}{\Delta t}=\frac{328.6 kg m/s}{0.812 s}=404.7 N$

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3 years ago