Tool to convert letters to numbers and vice versa. The letter-to-number cipher consist in replacing each letter by its position in the alphabet
Answer:
Pip feels downcast, and also he feels like he is a disappointment to himself and to all of his friends.
This impacts his feelings for Estella because now he feels poor, and feels as if he can no longer impress her.
Explanation:
The net force on the bookcase in the direction of its motion is
∑ F = 65 N - F[friction] = (41 kg) (0.12 m/s²)
so that friction has a magnitude of
F[friction] = 65 N - (41 kg) (0.12 m/s²) = 60.08 N
The net force on the bookcase perpendicular to the surface is
∑ F = F[normal] - (41 kg) g = 0
so that
F[normal] = (41 kg) g = 401.8 N
If µ is the coefficient of kinetic friction, then
F[friction] = µ F[normal]
so that
µ = F[friction] / F[normal] = (60.08 N) / (401.8 N) ≈ 0.15
