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Answer:
Time taken to stop = 6 sec
Explanation:
Given:
Rotation of wheel = 1.10 × 10² rev/min
Final velocity (v) = 0
Angular acceleration (a) = - 1.92 rad/s²
Find:
Time taken to stop
Computation:
Initial velocity (u) = (1.10 × 10² × 2π rad) / 60 sec
Initial velocity (u) = 11.52 rad / sec
We know that,
V = U +at
t = (v-u)a
t = (0 - 11.52) / (-1.92)
Time taken to stop = 6 sec
Answer:
1/Re=1/R1 +1/R2= 2x1/R1=2/R1=2/R2=2/50=1/25
1/Re=1/25, so the answer is Re= 25
the answer is A. 25.0
Answer:
3.8379 meters
Explanation:
A charged particle into an uniform magnetic field describes a circular movement with radius "r" acording to the equation r=(m*v)/(q*B), where m is the mass of the particle, v its velocity, q the charge, and B the perpendicularly uniform magnetic field. Replacing your value on this equation, the radius is 3.8379 m. I suggest to verify the value of the magnetic field, because 9.4 is a extremely high magentic field.