Answer:
The radius of the gold nucleus is 7.1x10⁻¹⁵m
Explanation:
The nearest distance is:
(eq. 1)
Where
z = atomic number of gold = 79
e = electron charge = 1.6x10⁻¹⁹C
k = electrostatic constant = 9x10⁹Nm²C²
energy of the particle = 32 MeV = 5.12x10⁻¹²J
At the potential energy is zero, all the energy will be kinetic energy:
![E_{k} =\frac{1}{2} m V^{2}](https://tex.z-dn.net/?f=E_%7Bk%7D%20%3D%5Cfrac%7B1%7D%7B2%7D%20m%20V%5E%7B2%7D)
Where
m = 4 mp = mass of proton
![5.12x10^{-12} =\frac{1}{2} *4*m_{p}* V^{2} \\m_{p}* V^{2} = 2.56x10^{-12}](https://tex.z-dn.net/?f=5.12x10%5E%7B-12%7D%20%3D%5Cfrac%7B1%7D%7B2%7D%20%2A4%2Am_%7Bp%7D%2A%20V%5E%7B2%7D%20%5C%5Cm_%7Bp%7D%2A%20V%5E%7B2%7D%20%3D%202.56x10%5E%7B-12%7D)
Replacing in equation 1
![r=\frac{9x10^{9}*79*(1.6x10^{-19})^{2} }{2.56x10^{-12} } =7.1x10^{-15} m](https://tex.z-dn.net/?f=r%3D%5Cfrac%7B9x10%5E%7B9%7D%2A79%2A%281.6x10%5E%7B-19%7D%29%5E%7B2%7D%20%20%20%7D%7B2.56x10%5E%7B-12%7D%20%7D%20%3D7.1x10%5E%7B-15%7D%20m)
Answer:
Rotational inertia decreases proportional to the decrease in the radius of rotation.
Explanation:
Answer:
• 36.4 kg of coal.
• 80 pounds of coal.
Explanation:
Using proportionality constant,
Mass of coal = 1,000,000/27,500,000 btus/metric ton
= 0.0364 metric tons of coal
Mass of coal = 1,000,000/25,000,000 btus/ton
= 0.04 tons of coal.
Converting metric tons to kilogram,
1 metric ton = 1000kg,
0.0364 metric ton;
= 36.4 kg of coal.
Converting tons to pounds,
1 ton = 2000 pounds,
0.04 metric ton;
= 80 pounds of coal.
Answer:The greater the amount of water that there is it will take longer for the water to freeze because more heat has to be dissipated into the environment
Explanation:
You have to figure it out