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3 years ago

What is a phase change? List 3 examples of a phase change.HELP ASAP :3

Physics

1 answer:

coldgirl [10]3 years ago

3 0

Answer:

1. Solid to liquid：ice cube melting into water.

2. Liquid to gas：water boiling

3. Solid to gas：dry Ice transfer into carbon dioxide directly.

Explanation:

The term phase transition (or phase change) is most commonly used to describe transitions between solid, liquid, and gaseous states of matter, as well as plasma in rare cases.

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nasty-shy [4]

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3 years ago

Stages of global warming

ddd [48]

Answer:

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4 years ago

The muzzle velocity of a rifle bullet is 709 m s−1along the direction of motion. If the bullet weighs 35 g, and the uncertainty

nydimaria [60]

Answer:

Uncertainty in position of the bullet is $\Delta x=1.07\times 10^{-33}\ m$

Explanation:

It is given that,

Mass of the bullet, m = 35 g = 0.035 kg

Velocity of bullet, v = 709 m/s

The uncertainty in momentum is 0.20%. The momentum of the bullet is given by :

$p=mv$

$p=0.035\times 709=24.81\ kg-m/s$

Uncertainty in momentum is,

$\Delta p=0.2\%\ of\ 24.81$

$\Delta p=0.049$

We need to find the uncertainty in position. It can be calculated using Heisenberg uncertainty principal as :

$\Delta p.\Delta x\geq \dfrac{h}{4\pi}$

$\Delta x=\dfrac{h}{4\pi \Delta p}$

$\Delta x=\dfrac{6.62\times 10^{-34}}{4\pi \times 0.049}$

$\Delta x=1.07\times 10^{-33}\ m$

Hence, this is the required solution.

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4 years ago

What is the atomic number of an element whose atoms each 47 protons,60 neutrons, and 47eletrons

Lorico [155]

What is the atomic number of an element whose atoms each 47 protons, 60 neutrons, and 47 electrons?

The correct answer is number 47 or Ag (Silver).

Hope I Helped!

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3 years ago

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dolphi86 [110]

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3 years ago

Read 2 more answers

What is a phase change? List 3 examples of a phase change.HELP ASAP :3 ​

What is a phase change? List 3 examples of a phase change.HELP ASAP :3