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3 years ago

When Trinity pulls on the rope with her weight, Newton's Third Law of Motion tells us that the rope will _____.

Physics

2 answers:

kari74 [83]3 years ago

6 0

As we know that for every action there is equal and opposite reaction

So here it says that if we apply some external force on a system then system will exert same magnitude force on us but in opposite direction.

This is Newton's III law which is applicable in all classical situations

Now here we can see in the given situation we have given that Trinity pulls the rope with her weight so As per Newton's III law the rope will Pull Trinity by same force i.e. equal to his weight in opposite direction.

Grace [21]3 years ago

5 0

The rope will pull back against you.

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Answer:

The sport utility vehicle was traveling at V2= 11.5 m/s.

Explanation:

m1= 1090 kg

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m2= 2880 kg

V2= ?

m1*V1 = m2*V2

V2= (m1*V1)/m2

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1kg slab of concrete loses 12,000j of heat when it cools from 30 Celsius to 26 Celsius. Determine the specific heat capacity of

OleMash [197]

The specific heat capacity of concrete is $3.0 J/(g^{\circ}C)$

Explanation:

When a certain amount of energy Q is supplied/given off to/from a sample of substance with mass m, the temperature of the substance increases/decreases by an amount $\Delta T$ , according to the equation

$Q=mC_s \Delta T$

where

m is the mass of the substance

$C_s$ is the specific heat capacity of the substance

$\Delta T$ is the change in temperature of the substance

In this problem, we have:

m = 1 kg = 1000 g is the mass of the concrete slab

$Q = -12,000 J$ is the amount of energy lost by the slab

$\Delta T = 30-26= -4^{\circ}C$ is the change in temperature of the slab

Solving the equation for $C_s$ , we find the specific heat capacity of concrete:

$C_s = \frac{Q}{m \Delta T}=\frac{-12,000}{(1000)(-4)}=3.0 J/(g^{\circ}C)$

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brainly.com/question/4759369

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3 years ago

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Answer:

These energy exchanges are not changes in kinetic energy. They are changes in bonding energy between the molecules. If heat is coming into a substance during a phase change, then this energy is used to break the bonds between the molecules of the substance.

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3 years ago

An atom that has only one electron in its valence electron shell is_______chemically reactive.

Rasek [7]

Highly

Explanation:

An atom that has one electron in its valence electron shell is highly chemically reactive.

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