3 years ago

Use the kinetic theory of matter to explain thermal expansion in liquids

1 answer:

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When a substance is heated the average kinetic energy of molecules increases and they start moving with an increased speed.As a result between mean separation between the molecules also increases

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The earth exerts a force of 500 newtons on an object what is the mass of the object in kg

guajiro [1.7K]

Weight (that's what the 500 N is) = (mass) x (gravity) .

On Earth, gravity = about 9.8 m/s² , so

   500 N = (mass) x (9.8 m/s²) .

Divide each side by 9.8 m/s²:

   Mass = (500 N) / (9.8 m/s²)

=    51 kg (rounded) .

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3 years ago

The axoplasm of an axon has a resistance Rax. The axon's membrane has both a resistance (Rmem) and a capacitance (Cmem). A singl

dybincka [34]

Answer:

The expression is Vmem = ΔV - I*Rax

Explanation:

According to the picture, if switch S is closed, the Cmem will be short. If Vcap = 0, the current flows through the capacitor only (not through Rmem), thus Vmem = 0 after closing S.

When C is fully charged, then we have:

Vmem = ΔV - I*Rax

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4 years ago

I'm just reviewing for my science semester exam and I got this wrong:

Afina-wow [57]

I think the answer is 2.
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tatiyna

The answer is A. A folkway is a closely held belief by a specific group of people.

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And object has traveled 200 m in 20 seconds what is its average speed

BabaBlast [244]

It is going 10m speed

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3 years ago

Use the kinetic theory of matter to explain thermal expansion in liquids​

Use the kinetic theory of matter to explain thermal expansion in liquids