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2 years ago

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Definition of termperature in thermodynamics

1 answer:

antoniya [11.8K]2 years ago

3 0

"Temperature is the measure of the average kinetic energy of the particles in a substance, which is related to how hot or cold that substance is. Historically, two equivalent concepts of temperature have developed, the thermodynamic description and a microscopic explanation based on statistical physics"

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A team of dogs accelerates a 290kg dogsled from 0 to 6.0m/s in 3.0 s. Assume that the acceleration is constant.Part AWhat is the

Mademuasel [1]

Answer:

(a) $a=2m/sec^2$

(b) 5220 j

(c) 1740 watt

(d) 3446.66 watt

Explanation:

We have given mass m = 290 kg

Initial velocity u = 0 m/sec

Final velocity v = 6 m/sec

Time t = 3 sec

From first equation of motion

v = u+at

So $a=\frac{v-u}{t}=\frac{6-0}{3}=2m/sec^2$

(a) We know that force is given by

F = ma

So force will be $F=290\times 2=580N$

(b) From second equation of motion we know that

$s=ut+\frac{1}{2}at^2=0\times 3+\frac{1}{2}\times 2\times 3^2=9m$

We know that work done is given by

W = F s = 580×9 =5220 j

(c) Time is given as t = 3 sec

We know that power is given as

$P=\frac{W}{t}=\frac{5220}{3}=1740Watt$

(d) Time t = 1.5 sec

So $P=\frac{W}{t}=\frac{5220}{1.5}=3466.66Watt$

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3 years ago

Which metal and nonmetal families are the most different and why

nevsk [136]

Answer:

since they have got specific and special metallic and non metallic characteristics I guess

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3 years ago

Name the regions of a electromagnetic spectrum from the shortest wavelength to the longest wavelength

kaheart [24]

Answer:

From shortest wavelength to longest wavelength:

Gamma Rays

X-Rays

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Visible Light

Infrared waves

Microwaves

Radio Waves

Explanation:

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2 years ago

The smallest particle of an element that retains the characteristics of the element is a(n) ________

Novay_Z [31]

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2 years ago

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Alinara [238K]

I think the answer is c h and o

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2 years ago

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