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Aliun [14]
2 years ago
7

Giúp mình với ạ…mình đang gấp…

Physics
1 answer:
Lyrx [107]2 years ago
5 0

Answer:

i don't understand ur language

Explanation:

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A rocket being thrust upward as the force of the fuel being burned pushes downward is an example of which of Newton's laws?
RoseWind [281]

The correct answer was

3rd Law

Thanks Mimi55555


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3 years ago
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In the nucleus ______________<br> tell cells what to do and how to change.
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if i remember correctly if the dna tells the cell what to do and how to do it

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If an object is symmetrical its axis of symmetry would be in the center??
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A loaded 320 kg toboggan is traveling on smooth horizontal snow at 4.60 m/s when it suddenly comes to a rough region. The region
MariettaO [177]

Answer:

367.04 N

Explanation:

Frictional force = mass of the toboggan×deceleration caused by the rough region

Fr = m×ar....................... Equation 1

Where Fr = Average frictional force, m = mass of loaded toboggan, ar = deceleration cause by the rough region.

We can calculate for ar using the formula below

v² = u²+2ars................... Equation 2

make ar the subject of the equation

ar = (v²-u²)/2s.................. Equation 3

Where v = final velocity of the toboggan, u = initial velocity of the toboggan, s = distance or length of the rough region

Given: v = 1.2 m/s, u = 4.6 m/s, s = 8.6 m

Substitute into equation 3

ar = (1.2²-4.6²)/(2×8.6)

ar = (1.44-21.16)/17.2

ar = -19.72/17.2

ar = -1.147 m/s²

Also given: m = 320 kg

Substitute into equation 1

Fr = 320(-1.147)

Fr = -367.04 N

Note: The negative sign tells that the frictional force opposes the motion of the toboggan

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3 years ago
What happens when you stick your head in a microwave?
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