A researcher measured the absorbance and percent transmittance of a blue dye at wavelengths between 425 and 700 nmnm. The measur
1 answer:
You might be interested in
Answer:
Electric Field a the centre
Explanation:
<u>Given:</u>
Total charge on the semicircle =Q
Radius of the semicircle=R
Let consider a elemental charge on the semicircle at an angle with the horizontal. Since the The charge distribution is symmetrical about y axis so the there will symmetrical charge on other side. The horizontal component will cancel out each other and vertical component will get added so let dE be the electric Field due to elemental charge
Let be the charge per unit length such that
Total Electric Field at the centre
integrating 0 to
So the Electric field at the centre is calculated.
Electric field is defined as force per unit charge.
So it is given by
now we can find electric field by
So field strength is 0.75 N/C.
Answer:
Explanation:
let \theta be the inclination at which curve is tilted
v is the speed of car and R is the radius of curve
m is the mass of car
Suppose R is the reaction offered by road to car
Resolving R in x and y direction we get
will balance weight and
will provide the necessary centripetal Force
thus ------------1
----------------2
Divide 1 & 2 we get
