The initial and final velocities, respectively, of a particle in four situations are:
(i) vi = 2 m/s, vf = 3 m/s.
(ii) vi = - 2 m/s, vf= 3 m/s
(iii) vi = - 2 m/s, vf= - 3 m/s
(iv) vi = 2 m/s, vf= - 3 m/s
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the magnitude of the particle's constant acceleration is the same in all four situations. rank the situations according to the magnitude of the particle's displacement, greatest first, during the change from initial to final velocity.

d. air pressure decreases as altitude increases.

d₁ = displacement of tern from arctic to antarctic = 11000 miles

d₂ = displacement of tern from antarctic to arctic =   - 11000 miles

d = total displacement for the journey

total displacement for the journey is given as

d = d₁ + d₂

d = 11000 + (-11000)

d = 0 miles

t₁ = time of travel from arctic to antarctic = 3 months = 3 x 30 days = 90 days

t₂ = time of travel from antarctic to arctic = 3 months = 3 x 30 days = 90 days

t = total time of travel

total time of travel is given as

t = t₁ + t₂

t = 90 + 90

t = 180 days

average velocity is given as

average velocity = total displacement/ total time

v = d/t

v = 0/180

v = 0 miles/day

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

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