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3 years ago

Ifa cup of coffee is at 90°C and a person with a body temperature of 36°C touches it, how will heat flow between

Physics

2 answers:

kari74 [83]3 years ago

5 0

From the cup to the hand

Finger [1]3 years ago

5 0

It will flow from cup to hand

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morpeh [17]

Because they occur at an atomic level, changing the actual structure of the thing.
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3 years ago

Add the vectors:

Anettt [7]

Vector 1 has components

$x_1=(10\,\mathrm m)\cos20^\circ\approx9.40\,\mathrm m$

$y_1=(10\,\mathrm m)\sin20^\circ\approx3.42\,\mathrm m$

and vector 2 has

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Add these vectors to get the resultant, which has components

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$y_{\rm total}\approx13.268\,\mathrm m$

The magnitude of the resultant is

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3 years ago

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Setler [38]

I think the answer is B.

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3 years ago

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Two masses, each weighing 1.0 × 103 kilograms and moving with the same speed of 12.5 meters/second, are approaching each other.

juin [17]

A perfectly elastic<span> collision is defined as one in which there is no loss of </span>kinetic energy<span> in the collision. Therefore, we just add the kinetic energies of each system. We calculate as follows:

KE = 0.5(</span>1.0 × 10^3)(12.5 )^2 + 0.5(1.0 × 10^3)(12.5 )^2
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Temka [501]

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