Asimple pendulum is constructed by suspending a small metal bob with a fine wire of the same metal. the periodic time of the pendulum at temperature c1, is t1. when
the pendulum operates at a higher temperature of c2 the period of the pendulum would be?
(linear expansivity of the metal is a)

The plum pudding model of the atom states that ?

Assume that a person skiing high in the mountains at an altitude of h = 15100 ft takes in the same volume of air with each breath as she does while walking at sea level. determine the ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level. assume that the air composition (i.e. % of air that is oxygen) is the same at sea level as it is at 15100 ft.

Estimate the schwarzschild radius (in kilometers) for a mini-black hole formed when a superadvanced civilization decides to punish you (unfairly) by squeezing you until you become so small that you disappear inside your own event horizon. (assume that the your weight is 50 kg)