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Physics help man!!! please and thank you?
Given: g = 9.8 m/s2.
A small glass of water is placed on carousel
inside a microwave oven, at a radius 6.8 cm
from the center. The carousel rotates steadily,
tuning through one revolution every 9.4 s.
What angle does the water surface make
with the horizontal?
Answer in units of ◦
1 Answer
- ?Lv 71 decade agoFavorite Answer
centripetal acceleration of center of glass = V²/R
R = 0.068 m
w = 1 rev/9.4 s = 0.1064 rev/s = 2π(0.1064) = 0.668 rad/s
V = wR
V² = w²R²
V²/R = w²R = (0.668)²(0.068) = 0.03034 m/s²
tan Θ = 0.03034/9.8
Θ = 0.177° ANS