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yarga [219]
3 years ago
12

What is melting? when an ice cube turns from a solid to a liquid, the particles

Physics
2 answers:
bagirrra123 [75]3 years ago
8 0

Answer:

Melting is the breaking of bonds between particles (atoms) due to the increase in temperature (energy).

Explanation:

When elements are in solid form, it means that the conditions they are in do not allow particles to move much, which creates stable bonds (stable bonds as in, difficult to break) between atoms.  

                                                          ↓

When the temperature increases, this atoms gain more and more energy (which makes them move) until bonds break and the transition from solid to liquid begins.

Hope it helped,

BioTeacher101

galina1969 [7]3 years ago
4 0

The ice cube which was solid has turned into the liquid water because the air temperature is warmer than the freezers. ... Therefore the ice particles have enough energy to break apart (melt)into smaller particle arrangements.

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A person's body is producing energy internally due to metabolic processes. If the body loses more energy than metabolic processe
Allushta [10]

To solve this problem it is necessary to apply the concepts related to the Stefan-Boltzman law that is responsible for calculating radioactive energy.

Mathematically this expression can be given as

P = \sigma Ae\Delta T^4

Where

A = Surface area of the Object

\sigma = Stefan-Boltzmann constant

e = Emissivity

T = Temperature (Kelvin)

Our values are given as

A = 1.36m^2

\Delta T^4 = T_2^4 -T_1^4 = 307^4-T_1^4

\sigma = 5.67*10^{-8} J/(s m^2 K^4)

P = 122J/s

e = 0.7

Replacing at our equation and solving to find the temperature 1 we have,

P = \sigma Ae\Delta T^4

P = \sigma Ae (T_2^4 -T_1^4)

122 = (5.67*10^{-8})(1.36)(0.7)(307^4-T_1^4)

T_1 = 285.272K = 12.122\°C

Therefore the the temperature of the coldest room in which this person could stand and not experience a drop in body temperature is 12°C

8 0
3 years ago
1. List three ways the Earth was different today from when it was first formed.
djverab [1.8K]

1- Selfishness

2- Bad Government

3- Segregation

5 0
2 years ago
Unos amigos de 5 integrantes salen a comer, el primero pide un pollo a la brasa que cuesta S/50.00, el segundo un aeropuerto que
ser-zykov [4K]

Respuesta:

$138.39

Explicación:

Paso 1: Calcular el total que gastaron

El total que gastaron es igual a la suma de los que gastó cada uno.

$50.00 + $28.50 + $20.50 + $10.80 + $22.00 = $131.80

Paso 2: Calcular el 5% de $131.80

$131.80 × 5% = $6.59

Paso 3: Calcular el total que pagó con la tarjeta

A los $131.80 que gastaron debe sumarle los $6.59 por el uso de tarjeta.

$131.80 + $6.59 = $138.39

3 0
2 years ago
You are trying to determine the identity of an unknown metal object using density. You measure the volume by displacement using
Oduvanchick [21]

The formula you use is Density = (mass) / (volume) .

The calculation for this particular object is

Density = (68.895 g) / (23.5 mL - 14.7 mL)

Density = (68.895 g) / (8.8 mL)

<em>Density = 7.8 g/mL</em>

7 0
3 years ago
At the bottom of a hill, a car has an initial velocity of +16.0 meters per second. The car is uniformly accelerated at -2.20 met
Kazeer [188]

Answer:

3) 52.5 m

Explanation:

d = v₁t + 1/2at²

d = 16 m/s (5s) + 1/2(-2.2m/s²) (5s)²  = 52.5 m

4 0
3 years ago
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