Suppose object A<span> is a cue ball and object </span>B<span> is an eight ball on a pool table. If the cue ball strikes the eight ball, the cue ball exerts a force on the eight ball that sends it rolling toward the pocket. At the same time, the eight ball exerts an equal and opposite force on the cue ball that brings it to a stop. Note that both the cue ball and the eight ball each experience a change in momentum. However, the sum of the momentum of the cue ball and the momentum of the eight ball remains constant throughout.</span>
Answer:
F_2 = 20 x 10⁻⁶ N
Explanation:
given,
current in right direction
I₁ = 10 A
I₂ = 5 A
I₃ = 8 A
Length of Wire 2 = 15 cm
distance between wire 1 and wire 2, r₁ = 5 cm
distance between wire 2 and 3 = r₂ = 17 - 5 = 12 cm
Force on wire 2 due to current in wire 1 and wire 2
μ₀ =absolute permeability of free space= 4π x 10⁻⁷ H/m
F_2 = 20 x 10⁻⁶ N
an unexpected visitor as it begins making you feel uncomfortable but it's get calm
<h2>Ratio of final kinetic energy to initial kinetic energy is 16.</h2>
Explanation:
Kinetic energy , KE = 0.5mv²
Here car speeds up to four times the initial speed, we need to find ratio of final kinetic energy to initial kinetic energy.
Final speed = 4 x Initial speed = 4v
Initial KE = 0.5mv²
Final KE = 0.5 x m x (4v)²
Final KE = 16 x 0.5 x m x v²
Final KE = 16 x Initial KE
Ratio of final kinetic energy to initial kinetic energy is 16.
