Question

Tolong dijawab no. 8,9,10 klu bisa dgn cara kerjanya!!!
PLEASE !!!

Answer 1

8.
s = 6m
h = 1.5m
w = 90kg
g = 10m/s2
w = m × g
w = 90 × 10
w = 900N

w/F = s/h
900/F = 6/1.5
6 × F = 900 × 1.5
6 × F = 1350
F = 1350 ÷ 6
F = 225N


9.
h = 50 - 15 = 35cm = 0.35m
ρ = 1g/cm3 = 0.001kg/cm3 = 1000kg/m3
g = 10m/s2

P = ρ × g × h
P = 10 × 1000 × 0.35
P = 3500N/m2


10.
0.4s = 2 gelombang
1s = 2 ÷ 0.4
1s = 5 gelombang
Frekuensi = 5Hz