Force= distance/time
Maybe that formula will help
Star 1 - 4 hours right ascension
Star 2 - 3 hours right ascension
Subtracting hours right ascension
4 hours right ascension - 3 hours right ascension = 1 hours right ascension.
Thus,
1) star 1 will rise 1 hour before star 2
The closure temperature represents the point when isotopes are no longer free to move out of a crystal lattice.
Answer: Option C
<u>Explanation:</u>
The closure temperature can also be termed as blocking temperature. It is mostly used in radiometric dating. As the temperature decreases, below a certain point the isotopes may get freeze in their lattice positions. And there may be slowing of diffusion.
At the closure temperature, that rate of diffusion will be zero as the isotopes will be no longer free to move out of crystal lattice. So, this is termed as closure or blocking temperature. As the isotopes loose their ability to move, their concentration will remain fixed in their position leading to measurement of radiation dating.
The average speed is given by the total distance travelled/total time taken thus the speed will be
100/50 = 2m/s
Answer:
Explanation:
Electric field strength, E = 5900 V/m
Magnetic field strength, B = 8.3 x 10^-3 T
The magnetic force on the charge particle is balanced by the magnetic force on the charge particle which is moving with velocity v.
qE = q v B
v = E / B
v = 7.1 x 10^5 m/s
