Answer:
Explanation:
If V be the potential difference which creates velocity v
Ve = 1/2 m v²
e is charge on the particle , m be the mass .
If V is tripled , v becomes √3 times , so velocity becomes √3 v .
in magnetic field , the path becomes circular
for radius of the circle , the relation is
m v² / R = Be v , B is magnetic field
R = m v / B e
So R is proportional to velocity
If velocity becomes √3 times , radius too becomes √3 times
new radius = √3 x 5
= 8.66 cm.
b )
For angular frequency ω = v / r = velocity / radius
velocity = 5 x 10⁴ m / s , r = 8.66 x 10⁻² m
= 5 x 10⁴ / 8.66 x 10⁻²
= .577 x 10⁶ rad / s
= 5.77 x 10⁵ rad / s
It will be positive since it will lose 3 electrons. Its in group 13 and the elements there lose 3 electrons to become stable
Which of the following materials is able to absorb large amounts of energy without changing temperature very much?
Answer: Out of all the options presented above the one that represents the material that is able to absorb large amounts of energy without changing temperature very much is answer choice C) Water.
I hope it helps, Regards.
To solve this problem we will apply the concept related to the electric field defined from the laws of Coulomb. For this purpose we will remember that the electric field is equivalent to the product of the Coulomb constant due to the change of the charge over the squared distance, mathematically this is
Here,
k = Coulomb's constant
r = Distance from center of terminal to point where electric field is to found
q = Excess charge placed on the center of terminal of Van de Graff's generator
Replacing we have that,
Therefore the electric field is