A 1.2 kg ball moving due east at 40 m/s strikes a stationary 6.0 kg object. The 1.2 kg ball rebounds to the west at 25 m/s. What
1 answer:
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Answer:
(A) 0.1842 T (B) (C) 0.2188 J (D)
Explanation:
Length of the solenoid L = 27 cm =0.27 m
Area of cross section
Number of turns N = 440
Current i = 90 A
(A) Magnetic field in the solenoid
(B) The energy density is given by
(C) The total energy contained in the coli magnetic field = energy density ×volume = energy density ×l×A
So the total energy
(D) The energy stored in the inductor is given by
So
Answer:
Explanation:
Given,
For the first rocket,
- Initial velocity of the first rocket A =
- Acceleration of the first rocket =
For the second rocket,
- Initial velocity of the second rocket B =
- Displacement of both the rockets A and B = s = 0 m
Fro the first rocket,
Let 't' be the time taken by the first rocket A for whole the displacement
Let be the acceleration of the second rocket B for the same time interval
from the kinematics,
Hence the acceleration of the second rocket B is -33.65\ m/s^2.