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vladimir1956 [14]
3 years ago
13

Define density in thermodynamics​

Physics
1 answer:
oksano4ka [1.4K]3 years ago
5 0

Answer:

total mass (m) of that substance divided by the total volume (V) occupied by that substances

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A 180 cm length of string has a mass of 5.0 g. it is stretched with a tension of 8.6 n between fixed supports. (a) what is the w
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4 years ago
A street light is at the top of a 13.0 ft. tall pole. A man 6.3 ft tall walks away from the pole with a speed of 3.5 feet/sec al
amm1812

Answer:

\dfrac{dL}{dt}=5.82 \ ft/s

Explanation:

given,

street light height = 13 ft

man height = 6.3 ft

speed of the man = 3.5 ft/sec

\dfrac{H}{L} = \dfrac{h}{l}

\dfrac{H}{L} = \dfrac{h}{L-x}

\dfrac{L}{H} = \dfrac{L-x}{h}

hL = H(L-x)

hL = HL-Hx

L = \dfrac{Hx}{H-h}

L = \dfrac{13x}{13-6.3}

L = 1.94 x

\dfrac{dL}{dt}=\dfrac{dL}{dx}\dfrac{dx}{dt}

\dfrac{dL}{dt}=1.94\times 3

\dfrac{dL}{dt}=5.82 \ ft/s

7 0
3 years ago
What are the energy transfers in a torch?
lapo4ka [179]

Explanation:

The battery is a store of internal energy (shown as chemical energy). The energy is transferred through the wires to the lamp, which then transfers the energy to the surroundings as light. These are the useful energy transfers - we use electric lamps to light up our rooms.

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1. Place the following in logical order by writing the numbers 1 through 6 in the spaces provided.
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ecdbaf

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3 years ago
The melting point of a substance occurs at the same temperatures as it’s blank point
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I think it's a.

Explanation:

melting point is boiling

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4 years ago
Read 2 more answers
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