Answer:
A. The nucleus can be either positively charged or neutral.
Explanation:
The nucleus of an atom contains protons and neutrons only. Whereas electrons revolve around the nucleus. Protons are positively charged, neutrons have no charge and electrons are negatively charged.
I'm probably going to have to say C. E as it seems the steepest right around there. If I'm wrong on that, it has to be B. B
Student 1 would have a power 467 W and student 2 would have a power of 433 W. The correct option is the fourth option - Student 1 would have 467 W, and Student 2 would have 433 W of power.
From the question,
We are to calculate the power each student would have to climb the flight of stairs.
Power can be calculated using the formula
![P = \frac{F \times d}{t}](https://tex.z-dn.net/?f=P%20%3D%20%5Cfrac%7BF%20%5Ctimes%20d%7D%7Bt%7D)
Where
P is Power
F is the force
d is the distance
and t is the time
NOTE: The weight of the students represent the force
F = 700 N
d = 4 m
t = 6 s
∴ ![P = \frac{700 \times 4}{6}](https://tex.z-dn.net/?f=P%20%3D%20%5Cfrac%7B700%20%5Ctimes%204%7D%7B6%7D)
P = 467 W
F = 650 N
d = 4 m
t = 6 s
∴ ![P = \frac{650 \times 4}{6}](https://tex.z-dn.net/?f=P%20%3D%20%5Cfrac%7B650%20%5Ctimes%204%7D%7B6%7D)
P = 433 W
Hence, Student 1 would have a power 467 W and student 2 would have a power of 433 W. The correct option is the fourth option - Student 1 would have 467 W, and Student 2 would have 433 W of power.
Learn more here: brainly.com/question/18801566
Answer:
Lithification is the answer.
Answer:
6.5 x 10^32 eV
Explanation:
mass of particle, mo = 1 g = 0.001 kg
velocity of particle, v = half of velocity of light = c / 2
c = 3 x 10^8 m/s
Energy associated to the particle
E = γ mo c^2
![E=\frac{m_{0}c^}2}{\sqrt{1-\frac{v^{2}}{c^{2}}}}](https://tex.z-dn.net/?f=E%3D%5Cfrac%7Bm_%7B0%7Dc%5E%7D2%7D%7B%5Csqrt%7B1-%5Cfrac%7Bv%5E%7B2%7D%7D%7Bc%5E%7B2%7D%7D%7D%7D)
![E=\frac{m_{0}c^}2}{\sqrt{1-\frac{c^{2}}{4c^{2}}}}](https://tex.z-dn.net/?f=E%3D%5Cfrac%7Bm_%7B0%7Dc%5E%7D2%7D%7B%5Csqrt%7B1-%5Cfrac%7Bc%5E%7B2%7D%7D%7B4c%5E%7B2%7D%7D%7D%7D)
![E=\frac{2m_{0}c^}2}{\sqrt{3}}](https://tex.z-dn.net/?f=E%3D%5Cfrac%7B2m_%7B0%7Dc%5E%7D2%7D%7B%5Csqrt%7B3%7D%7D)
![E=\frac{2\times0.001\times9\times10^{16}}{1.732}](https://tex.z-dn.net/?f=E%3D%5Cfrac%7B2%5Ctimes0.001%5Ctimes9%5Ctimes10%5E%7B16%7D%7D%7B1.732%7D)
![E=1.04\times10^{14}J](https://tex.z-dn.net/?f=E%3D1.04%5Ctimes10%5E%7B14%7DJ)
Convert Joule into eV
1 eV = 1.6 x 10^-19 J
So, ![E=\frac{1.04\times10^{14}}{1.6\times10^{-19}}=6.5\times10^{32}eV](https://tex.z-dn.net/?f=E%3D%5Cfrac%7B1.04%5Ctimes10%5E%7B14%7D%7D%7B1.6%5Ctimes10%5E%7B-19%7D%7D%3D6.5%5Ctimes10%5E%7B32%7DeV)