Answer:
Explanation:
I'm going to assume that all the givens are in m/s. If I am correct, The orange line is speeding up. It is going from 4 m/s to 7 m/s. Its slant is from lower left to upper right. It is increasing in speed.
The green line is slowing down. It is going from 4 to 0 m/s. It's slant is from upper left to lower right.
The blue line is horizontal. It is neither slowing down or speeding up.
Answer:
Explanation:
For circular path in magnetic field
mv² / R = Bqv ,
m is mass , v is velocity , R is radius of circular path , B is magnetic field , q is charge on the particle .
a )
R = mv / Bq
If v is changed to 2v , keeping other factors unchanged , R will be doubled
b )
magnitude of acceleration inside field
= v² / R
= Bqv / m
As v is doubled , acceleration will also be doubled
c )
If T be the time inside the magnetic field
T = π R / v
= π / v x mv / Bq
= π m / Bq
As is does not contain v that means T remains unchanged .
d )
Net force acting on electron
= m v² / R = Bqv
Net force = Bqv
As v becomes twice force too becomes twice .
So a . b , d are correct answer.
Answer:
The most common oxidation numbers for a given element
Answer:
decantation, distilling, freezing
r = distance of moon from earth = 3.84 x 10⁸ m
R = size of the object on moon = 0.67 m
D = diameter of the lens = ?
= wavelength of light = 550 x 10⁻⁹ m
Using the equation for Rayleigh criterion
R/r = 1.22 /D
inserting the values
0.67/(3.84 x 10⁸) = 1.22 (550 x 10⁻⁹) /D
D = 384.6 m
