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2 years ago

In the picture of the atom above, what subatomic particle does the letter A represent?

Physics

1 answer:

ra1l [238]2 years ago

4 0

Answer:

Electron

Explanation:

In the picture, the letter A is pointing to an electron.

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A proton moves in the negative x-direction through a uniform magnetic field in the negative y-direction what is the direction of

ANEK [815]

A proton travels through a constant magnetic field in the negative y-direction while moving in the negative x-direction. The proton will be subject to a magnetic pull that is directed into the page. Option B is correct.

<h3>What is the right-hand thumb rule?</h3>

Hold a current-carrying conductor in your right hand with your thumb pointing in the direction of the current then wrap your fingers around the conductor and orient them in the direction of the magnetic field lines.

A proton travels through a constant magnetic field in the negative y-direction while moving in the negative x-direction.

The proton will be subject to a magnetic pull that is directed into the page.

Hence, option B is correct.

To learn more about the right-hand thumb rule refer to the link;

brainly.com/question/11521829

#SPJ1

4 0

2 years ago

Astronomical observatories have been available since ancient times, and many cultures set aside special sites for astronomical o

Vlada [557]

Answer:

The answer is "telescopes".

Explanation:

Throughout ancient times, astronomical observatories have indeed been available, and so many historical locations were reserved for astronomical observations. All contemporary astronomers lacked within those older telescopes were lenses until 1610. A telescope is indeed an instrument used to view far-off objects. Telescopes often are being used to look at planets and stars.

8 0

3 years ago

Hydrogen is found in three different states inside Jupiter, ______, liquid, and liquid ______.

tekilochka [14]

Answer:

gas, metal

Explanation:

The three states of by which hydrogen is found in Jupiter is made up of:

Gaseous hydrogen
liquid hydrogen
liquid metal hydrogen

This is also the same states found in Saturn too.

The pressure inside the largest planet in our solar system is very great.

Hydrogen and helium makes up the entirety of the planet Jupiter.
It has been discovered that inside this planet, hydrogen often occurs as gas, liquid and metal
This is often attributed to the huge amount of pressure in the planet.

7 0

3 years ago

An unknown material, m1 = 0.49 kg, at a temperature of T1 = 92 degrees C is added to a Dewer (an insulated container) which cont

erastova [34]

Answer:

$c_u=1540.5J/kg^{\circ}K$

Explanation:

We know that heat relates to mass, specific heat and variation of temperature experimented because of this heat through the equation $Q=mc\Delta T=mc(T_f-T_i)$ . The heat released by the unknown material is absorbed by water, so we have $Q_u=-Q_w$ , and we can write:

$m_uc_u(T_{uf}-T_{ui})=-m_wc_w(T_{wf}-T_{wi})$

Since thermal equilibrium is reached we know that $T_{cf}=T_{wf}=T_f=31^{\circ}C=304^{\circ}K$ , where we have added $273^{\circ}$ to convert the temperature from Celsius to Kelvin, as <em>we must do</em>. Since we want the specific heat of the unknown material, we do: