-- 6 people all trying to push a car out of snow
-- a Tug-o-War with 30 people of different sizes pulling on each end of the rope
-- you and your sister both pulling on the same doll (or Transformer)
-- lifting a book up from the table to a high shelf
taking a book down from a high shelf to the table
(one force is you; another force is gravity)
-- grabbing your big dog by his collar and trying to bring him inside
-- three people at the table all grab the ketchup bottle at the same time
Electric fields are produced by two kinds of charges, positive and negative. Magnetic fields are associated with two magnetic poles, north and south, although they are also produced by charges
Answer:
a = -2.82 m/s²
v = 18.4 m/s
Explanation:
Initial velocity, u = 26.0 m/s
Final velocity, v = 0 m/s
Distance travelled, s = 120m
Using
v² = u² + 2as
0 = 26² + 2(120)a
a= -2.82 m/s²
Velocity of the car when it was 60.0m past the point where the brakes were applied:
u = 26.0 m/s
a = -2.82 m/s²
s = 60m
Using
v² = u² + 2as
v² = 26² + 2(-2.82)(60)
v² = 337.6
v = 18.4 m/s
Answer:
Explanation:
electric field between plates
= surface charge density / ε₀
= 108 x 10⁻¹² / 8.85 x 10⁻¹² (ε₀ = 8.85 x 10⁻¹² )
= 12.20 V/ m
Electric potential diff
= electric field x distance between plates
= 12.20 x 17 x 10⁻³ V
= 0.207 Volt