The atomic number tells you the number of protons in an atom. This value never changes because the number of protons in the nucleus always remains constant. The mass number tells you the number of protons and neutrons (or nucleons) together: protons + neutrons = mass number. Since the number of neutrons in the nucleus varies, you can have different amounts of neutrons in the same type of atom. These varied types are called isotopes.
Hope this helps.
Answer:
Get your recommenders to mention diverse achievements. ...
Help your recommenders with relevant info. ...
The letter should always include examples of things you did. ...
The letter should show how you improved over time. ...
The tone of the letter should not be too dry.
Answer:How is potential energy converted to thermal energy in a system?
Explanation:
Answer:

Explanation:
<u>Dynamics</u>
When a particle of mass m is subject to a net force F, it moves at an acceleration given by

The particle has a mass of m=2.37 Kg and the force is horizontal with a variable magnitude given by

The variable acceleration is calculated by:


The instant velocity is the integral of the acceleration:


Integrating


