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ohaa [14]
3 years ago
15

Modern atomic theory states that the atom is a diffuse cloud surrounding a small, dense nucleus. Identify which particle is in t

he nucleus. A) ion b) proton c) electron d) free radical
Physics
1 answer:
In-s [12.5K]3 years ago
3 0

b) proton

the proton is the only one of these that are in the nucleus. if you think the electron is, its not; the electrons are all outside the nucleus in the electron cloud. :)

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Potrzebuję na teraz bardzo proszę
Andreyy89

Answer:

Niels bohr was the correct choise

Explanation:

bohr made the plum pudding model

5 0
3 years ago
What is the mass of a ball that is moving at 25 m/s and has 93.75 kg*m/s of momentum ?
melisa1 [442]

Answer:

m = 3.75 [kg]

Explanation:

We must remember that momentum is defined as the product of mass by Velocity, therefore it can be represented by means of the following equation.

P=m*v

where:

P = momentum = 93.75 [kg*m/s]

m = mass [kg]

v = velocity = 25 [m/s]

Now replacing, we can clear the mass:

P=m*v\\m=P/v\\m=93.75/25\\m=3.75 [kg]

7 0
3 years ago
An 73 cm long pendulum with a 0.80 kg bob is released from rest at an initial angle of θ0 with the vertical. at the bottom of th
kipiarov [429]
I dont know what the answer will be
8 0
4 years ago
Describe what happens to the energy of a wave if the frequency decreases and the frequency increased
Nata [24]

"As frequency increases, wavelength decreases. Frequency and wavelength are inversely proportional. This basically means that when the wavelength is increased, the frequency decreases and vice versa. Wavelength is described as the distance between a trough to a trough or a crest to a crest."

I'd recommend paraphrasing it tho.

4 0
3 years ago
Read 2 more answers
Iron has a mass of 7.87 g per cubic centimeter of volume, and the mass of an iron atom is 9.27 × 10-26 kg. If you simplify and t
Alecsey [184]
Known values; mass per / volume and mass of each atom 

average volume=<span> volume per atom. </span>
<span>density*mass per atom = volume per atom </span>

<span>1cm^3 / 7.87 gram * 9.27 *10^-26 kg /atom* 1000 gram / kg=
</span>=<span>1.178 * 10^-22 cm^3 per atom </span>

<span>Convert that to mass </span>
<span>1 cm^3 * (1 m / 100 cm)^3 </span>
 average volume= <span>1.178 *10^-29 m^3 per  atom </span>

<span>distance: </span>

<span>Volume of a cube is L^3 </span>


<span>so L = (1.178*10^-29)^(1/3) </span>

<span>Half way through the cube is distance 1/2 L. </span>
<span>Second cube is 1/2 L </span>
<span>So distance between the center of 2 cubes = L </span>

=2.28 *10^-10 m 
4 0
3 years ago
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