Because electricity attracts like people
Answer:
a)0.364 ns
b)1.43 x 10^-3
c)163.21 x 10^-5 m
Explanation:
mass of the positron is m=9.1 x 10^-31 kg
charge is q=1.6 x 10^-19 C
strength of the magnetic field is B=0.0980 T
kinetic energy is K=2.30 keV=2.30 x 10^3 x 1.6 x 10^-19 J
0.5mv^2=6.68 x 10^-16 J
0.5 x 9.1 x 10^-31 x v^2 =3.68 x 10^-16
v=2.84 x 10^7 m/s
a)the period is T=2πm/qB
=2π(9.1 x 10^-31 )/1.6 x 10^-19x 0.0980
=0.364 ns
b) pitch is p=vcosθ(2πm/qB)
=2.84 x 10^7x cos82(0.364 x 10^-9)
=1.43 x 10^-3
c) radius is r=mvsinθ/qB
=(9.1 x 10^-31 )2.84 x 10^7x sin82/1.6 x 10^-19x 0.098
=163.21 x 10^-5 m
A diverging lens is used to permit clear vision of an object placed at infinity. The focal length of the lens is -100 cm.
<h3>What is focal length?</h3>
The focal length is half of the radius of curvature of the focal lens.
By the lens maker formula,
1/f = 1/v +1/u
where, v is the image distance and u is the object distance.
Give, the object is at infinity and the image must form at 100 cm, the the focal length will be
1/f = 1/ -100 + 1/∞
f = -100 cm
The focal length must be -100 cm for the diverging lens.
Learn more about focal length.
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Explanation:
workdone = force × distance
distance = workdone/force
distance = 8/70 = 1.14m
It might be because of you genetics.Some families are small so their children get the genetics and that makes them small.For example I'm tall and im still young i got it from my dad's side of the family.But something that I think will help you be tall is playing basketball because if you see the players are very tall because when they want to dung the ball in the hoop they stretch.So maybe if you play basketball exercise eat healthy it might work.
Hope this helps =D
