PSY 166 CUNY Lehman Static Equilibrium Fluids Vibration and Waves Questions Could you please give thorough explanation as to how to solve the problems. The

PSY 166 CUNY Lehman Static Equilibrium Fluids Vibration and Waves Questions Could you please give thorough explanation as to how to solve the problems. The topics of these question includes: static equilibrium , Fluids, Vibrations and waves, Sounds, thank you!! PHYSICS 166, SPRING 2020, Test 3 NAME:______________________
1. A 20-kg girl is sitting on a seesaw 1.5m away from the pivot. How far
from the pivot should her 60-kg grandma be in order to balance the
seesaw? Show all your work.
2. Can the crane’s steel cable of diameter 1cm hold a load of mass
4,500kg without breaking? Show all your work.
3. At what speed does the water emerge from the hole in a bottle, that is
made 20cm below the water level? Show all your work.
4. A metal sphere is suspended from a light string of length 25cm. How
many oscillations per second does it make? Show all your work.
5. What is the frequency of the second harmonic in a pipe of length 0.5m
open from both ends? Show all your work.

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