Answer:
Explanation:
An impulse will result in a change of momentum.
The momentum change is
1500(23 - 14) = 13500 kg•m/s
so the applied impulse p = Ft
F = p/t
F = 13500/10 = 1350 N
Answer:
69×10⁻³ m
Explanation:
The linear thermal expansion coefficient for water is α = 69×10⁻⁶ K⁻¹.
Thermal expansion equation:
α ΔT = ΔL / L
Given ΔT = 1.00ºC = 1.00 K and L = 1.00 km = 1.00×10³ m:
(69×10⁻⁶ K⁻¹) (1.00 K) = ΔL / (1.00×10³ m)
ΔL = 0.069 m
ΔL = 69×10⁻³ m
