Answer:
14185.5J
Explanation:
Thermal energy can be calculated using the formula
Q = mcT where
Q is the amount of thermal energy in <em>J</em>
m is the mass in kg
c is the specific heat capacity in <em>J/kg/C</em>
T is the change in Temperature in <em>C</em>.
Hence by applying this formula, we get:
Q = (0.175)(4200)(24.3 - 5.00)
<u>Q = 14185.5 J</u>
Missing figure of the problem: http://tsephysics.weebly.com/uploads/5/1/9/3/51934203/477140_orig.jpg
Solution:
Assuming the potential is zero at infinite distance from the charge, then the potential at a certain distance r from a single point charge is
where
is the Coulomb's constant.
In our problem, we just have to superimpose the potential generated by every charge. The diagonal of the square is
, therefore the distance between each charge and the center of the square is
.
So, the total potential is:
Answer:
If you change the number of neutrons in an atom, you get an isotope of the same element. The addition of a neutron can make an atom radioactive. When you change the number of protons in an atom, you will change the atom from one element to a different element.
Explanation: