Answer:
they are constantly bouncing everywhere and creating preasure
Explanation:
Answer:
B train!
Explanation:
A train travelled at 40 km/hr. (120/3)
B train traveled at 45 km/hr (180/4)
Answer:
6093.2328 J
Explanation:
For cylindrical rod moment of inertia will be


we have given time =0.02 sec
Angular speed =
Rotational KE = 
Answer:
Explanation:
Charge on an electron (q) = 1.6 * 10 ^ -19 C
Velocity of electron (v) = 0.3037 * 300,000,000 = 91,110,000 m/sec
We know that, Force exerted on moving particle moving through a magnetic field :

1.2498 * 10 ^ -12 = 1.6 * 10^ -19 * 91110000 * B
B = 0.08573 T