Radio astronomers detect electromagnetic radiation at a frequency of 42MHz from an interstellar gas cloud. If the radiation resu
lts from electrons spiraling in a magnetic field, What is the magnetic field strength inside the gas cloud?
1 answer:
Answer:
Explanation:
The electrons will also spiral with frequency of 42 x 10⁶
n = 42 x 10⁶
For circular motion of electron
= Bqv = m ω² r ( centripetal force )
v / r = m ω² / Bq
= 4π² n² m / Bq
T = 2πr / v
1 / n = 2πr / v
r / v = 1 / 2π n
2π n = ω²m / Bq
ω = ω² m/ Bq
B = ω m / q
B = 2π nm / q
= 2 x 3.14 x 42 x 10⁶ x 9.1 x 10⁻³¹ / 1.6 x 10⁻¹⁹
= 15 x 10⁻⁴ T
You might be interested in
Answer:
Explanation:
number A
Answer:
As 28m/s = 28m/s
Explanation:
r = the radius of the curve
m = the mass of the car
μ = the coefficient of kinetic friction
N = normal reaction
When rounding the curve, the centripetal acceleration is

therefore



As 28m/s = 28m/s
The first scientist to introduce the concept of inertia was Galileo
Amalgamating is the coating of zinc plate with mercury.
Noble gases are not highly reactive