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notsponge [240]
3 years ago
14

What is all matter made up of?

Physics
2 answers:
madam [21]3 years ago
7 0
Proton
neutron
electron
aliya0001 [1]3 years ago
3 0
All matter is made up of atoms
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A helium atom has a mass of mHe= 4.002604 u. When disassembled into its constituent subatomic particles (2 protons, 2 neutrons,
Paraphin [41]

Answer:

28.295244 MeV

Explanation:

m_p = Mass of proton = 1.007276 u

m_n = Mass of neutron = 1.008665 u

m_e = Mass of electron = 0.000549 u

Mass of reactant is 4.002604 u

Mass of the products is

2\times (m_p+m_n+m_e)=2\times (1.007276+1.008665+0.000549)=4.03298\ u

(2 because there are 2 of each)

The difference in mass is

4.03298-4.002604=0.030376\ u

So, the work done in MeV would be

0.030376\times 931.5=28.295244\ MeV

The work done required to completely disassemble all the helium is 28.295244 MeV

8 0
3 years ago
HELP!!!
abruzzese [7]

17.7m/s

Explanation:

Given parameters:

Height of branch = 16m

Unknown:

Velocity before falling = ?

Solution:

We are going to use the appropriate motion equation to solve this problem.

The bird is falling in line with the action of gravity.

Initial velocity is 0 for the bird.

Let the velocity during flight = V;

 Then;

             V² = U²  + 2gH

since U = 0

      V² = 2gH

    V is the unknown velocity

     H is the height of fall

     g is the acceleration due to gravity

    V = √2gH = √ 2x9.8 x 16 = 17.7m/s

learn more:

Velocity brainly.com/question/4460262

#learnwithBrainly

6 0
3 years ago
Which is not an advantage of radio telescopes over optical telescopes?
amid [387]
Had to look for the options and here is my answer.
Based on the listed choices, the one that is considered as a disadvantage of radio telescopes over optical telescopes is that "t<span>hey have greater resolution for similar size collectors." Hope this answers your question.</span>
8 0
3 years ago
Why do you think the outer planets have such extensive systems of rings and moons, while the inner planets do not?
Inessa05 [86]

Answer:

Because of immense gravity

Explanation:

The formation of the Solar system was a very dynamic process. A lot of matter was thrown towards the outer solar system which further formed the Gas giants: Jupiter, Saturn, Uranus, and Neptune. The size of these outer planets is huge so is their gravity.

Because of their huge gravity a lot of matter which was scattered in the outer solar system got attracted towards them. This matter is what make the rings of the outer planets. Also, because of immense gravity they captured larger bodies thus making them their Moons.

6 0
3 years ago
What is the kinetic energy of a baseball moving at a speed of 40 m/s if the baseball has mass of 0.15 kg?
bonufazy [111]

0.5mv^2 > 0.5*0.15*40*40=120J

4 0
3 years ago
Read 2 more answers
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