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3 years ago

Which particle of the atom is the smallest and has the least mass?

Physics

2 answers:

tigry1 [53]3 years ago

8 0

Protons and neutrons have very nearly the same mass ... equal to the mass of more than 1800 electrons.

Neutrinos have virtually zero mass .

The "size" of any of these is meaningless. They're waves, not little ping-pong balls

If you MUST make a choice, pick C.

xeze [42]3 years ago

6 0

Hi,

The answer is Electrons.

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the temperature of a body fell from 100°c to 50°c in 10 minutes. the surrounding temperature was 20°c. what is the temperature a

Anna007 [38]

Answer:

The temperature is 10 c

4 0

3 years ago

A hula hoop is rolling along the ground with a translational speed of 26 ft/s. It rolls up a hill that is 16 ft high. Determine

nikklg [1K]

Answer:12.8 ft/s

Explanation:

Given

Speed of hoop $v=26\ ft/s$

height of top $h=16\ ft$

Initial energy at bottom is

$E_b=\frac{1}{2}mv^2+\frac{1}{2}I\omega ^2$

Where m=mass of hoop

I=moment of inertia of hoop

$\omega$ =angular velocity

for pure rolling $v=\omega R$

$I=mR^2$

$E_b=\frac{1}{2}mv^2+\frac{1}{2}mR^2\times (\frac{v}{R})^2$

$E_b=mv^2=m(26)^2=676m$

Energy required to reach at top

$E_T=mgh=m\times 32.2\times 16$

$E_T=512.2m$

Thus 512.2 m is converted energy is spent to raise the potential energy of hoop and remaining is in the form of kinetic and rotational energy

$\Delta E=676m-512.2m=163.8m$

Therefore

$163.8 m=mv^2$

$v=\sqrt{163.8}$

$v=12.798\approx 12.8\ ft/s$

7 0

3 years ago

What is ther atomic number of an element that has 2 electrons, 3 protons,<br> and 4 neutrons?

Bingel [31]

Answer:

Explanation:

A atomic number is the addition of every number

8 0

3 years ago

Layla shot a balloon straight up in the air and it is in the air round trip for 6.80 s.

Katena32 [7]

Answer:

24mph

Explanation:

it really depends how high but the average speed for that quick will be atleast 24mph if not try 42mph if it is wrong

5 0

2 years ago

All of the following are physical proporties of chlorine EXCEPT it ___

ss7ja [257]

Answer:

Option D

Reacts with sodium to form chloride

Explanation:

First, reaction between chlorine and sodium is a chemical reaction and not physical properties. Secondly, when chlorine reacts with sodium, it forms sodium chloride, NaCl NOT chloride as depicted by the statement. Otherwise, chlorine exists in the form of gas and is yellowish in color. Moreover, it's density is approximately 3.11 grams per liter. Therefore, the right answer is option D

8 0

3 years ago