A cosmic ray electron moves at 7.50×106 m/s perpendicular to the Earth’s magnetic field at an altitude where field strength is 1.00×10−5 T . What is the radius of the circular path the electron follows?
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Ответ:
4.266 m.
Explanation:
Given,
Speed of the electron = 7.50 x 10⁶ m/s
Magnetic field, B = 1 x 10⁻⁵ T
radius of circular path = ?
Using formula of radius of curvature of the charge particle
m is mass of electron
q is charge of electron
r = 4.266 m
Hence, radius of circular path is equal to 4.266 m.
Ответ:
0.07 rad/s
Explanation:
Given
kite is 100 ft high
and moves horizontally at 7 ft/s
Total string let out =200 ft
String length(l), vertical(y) & Horizontal(x) distance of kite will form a right angle triangle
Differentiating both side
Now![Lcos\theta =x](/tpl/images/0265/5311/50953.png)
Differentiating