The answer is the excited state of the hydrogen atom, n=24 and Z=23
Kinetic energy of electron is, 
For the excited state of the hydrogen atom , n=24 and Z=23
K.E=
12.5
What is the hydrogen atom?
- The hydrogen atom is the most basic of all the atoms since it just has one proton and one electron.
- There are two more hydrogen isotopes, deuterium and tritium, in addition to protium, which is the most prevalent form of the atom.
- The hydrogen atom consists of a proton and an electron, and has a spherical symmetry that can most easily be studied using a spherical polar coordinate frame.
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Answer:
It helps prevents falls and supports your body. So having a strong core is beneficial to everyone because it allows your body to function properly. Improved Balance and Stability. Core exercises train the muscles in your pelvis, lower back, hips and abdomen to work together.
Working formula:
y = v*t + 0.5*a*t^2
where:
y = vertical distance = -1 m
v = initial velocity = 1.25m/s
a = acceleration = 9.81 m/s^2
t = time
Required: t
Solution:
y = v*t + 0.5*a*t^2
1 = (1.25)*t + 0.5*9.81*t^2
0 = -1 + 1.25t + 4.905t^2
Applying completing the square, we get
t = 0.342 s, - 0.597s
Technically, we don't have time with negative value. Thus, the answer is t = 0.342 seconds
The second law states that the total entropy can never decrese over time for an isolated system
Answer:
The answer is
X: Converts mass into energy
Y: Is controlled by neutron absorption
Explanation:
To maintain a sustained controlled nuclear reaction (nuclear fission), for every 2 or 3 neutrons released, only one must be allowed to strike another uranium nucleus. If this ratio is less than one then the reaction will die out; if it is greater than one it will grow uncontrolled (an atomic explosion). A neutron absorbing element must be present to control the amount of free neutrons in the reaction space. Therefore, nuclear fission is controlled by neutron absorption.
Nuclear fission and fusion both converts mass to energy.
In both reactions total mass of material decreases but the energy comes out from atoms.
