Answer:
The shorter the blades(edges) are the more pressure can be applied. Because iron is a more dense and tougher material the edges must be short in order to provide enough pressure/force to break the bonds within the atoms.
Explanation:
Answer: emission of electromagnetic radiation
Explanation:
When an atom is in its <u>ground state</u>, its electrons fill the lower energy orbitals completely before they begin to occupy higher energy orbitals.
On the other hand, when an atom is <u>excited (</u>it has left its ground state, in which each electron occupies its place in its orbit, around the nucleus), some electron jumps out of the orbit it occupied in its fundamental state to an outer orbit, further away from the nucleus and then return to the ground state, emitting in the form of electromagnetic radiation (light which may be visible or not) the energy received.
So, when an excited electron passes from an outer orbit to the ground state, it produces electromagnetic radiation of a specific wavelength that depends on the amount of energy the electron releases in the process.
Therefore:
<h3>
The change of an atom from the excited state to the ground state always requires <u>
the emission of electromagnetic radiation.</u></h3>
Answer:
The magnitude will be "2212 N".
Explanation:
The given values are:
Initial speed, u = 250 m/s
Final speed, v = 0
Mass, m = 16.0 = 0.016 kg
Distance, d = 22.6 cm
On converting cm into m, we get
d = 0.226 m
As we know,
⇒ 
⇒ 
On putting the estimated values, we get
⇒ 
⇒ 
⇒ 
Now,
Force, 
On putting values, we get
⇒ 
⇒ 
(magnitude)
Answer:
Explanation:
We are given that
Current=I=1.75 A
Resistance =R=55.4 ohm
Time=t=9.5 min=
1 min=60 s
We have to find the heat generated by the resistor.
We know that
Heat=E=
Using the formula
Heat,
Hence, the heat generated by the resistor =
