Is It Easier to Use Mass Units for Calculating Kinetic Energy?

  • Thread starter Thread starter soupastupid
  • Start date Start date
AI Thread Summary
Using mass units can simplify calculations for kinetic energy, as demonstrated in the example where the kinetic energy needed for oxygen to ionize carbon is calculated. The result of 4.3 indicates that oxygen will not ionize carbon since it exceeds the threshold of 4. The discussion highlights the importance of correctly interpreting the question, emphasizing that it asks about the feasibility of ionization rather than the convenience of mass units. Ultimately, the conclusion is that while mass units may facilitate calculations, the core inquiry is about the possibility of ionization. Understanding the context of the question is crucial for accurate problem-solving.
soupastupid
Messages
34
Reaction score
0

Homework Statement



its asking me if if it is easier to use the mass units

Homework Equations



PART A

The Attempt at a Solution



its it easier to to use numbers given becuz

when add the numbers

(3.9) / ( 1 - 16 / (16+133) ) = 4.3 = kinetic energy needed for O ionize C
4.3 > 4 therefore, O will not ionize

right?

the answer is YES
 

Attachments

  • exciting.jpg
    exciting.jpg
    58.6 KB · Views: 1,193
Physics news on Phys.org
soupastupid said:
its asking me if if it is easier to use the mass units
Careful. The question is "Is it possible to ionize...". They are not asking about units, they are telling you that certain units are easier to use.
 

Thread 'Struggling to understand the concept of this question (ice cube in water optics question)'

TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
View full post »

Thread 'Rolling without slipping on a curved surface'

Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
View full post »

Similar threads

Kinetic energy of recoil atom in the photoelectric effect
Replies
1
Views
3K
Kinetic Energy of a Cylinder Rolling Without Slipping
Replies
21
Views
4K
Conservation of Energy with Gravitational Potential Energy
Replies
6
Views
2K
Using energy considerations to analyse particle motion
Replies
3
Views
884
Distribution of Energy when work is done on a system of 2 masses connected by a spring
Replies
17
Views
2K
Force components for mass attached to two springs
Replies
15
Views
1K
Finding relativistic mass and energy of an electron
Replies
14
Views
3K
Uniform distribution of charge and work needed
Replies
12
Views
3K
Question about springs and rotational/translational energy
Replies
4
Views
1K
Calculating Kinetic Energy in English Units
Replies
1
Views
15K

Hot Threads

Recent Insights

Back
Top