Recent content by klilly

Homework Statement A person had a near point of 80 cm. What focal length lens would be required to correct this persons near point to 30cm, allowing then to read at this distance Homework Equations Maybe: 1/di + 1/do = 1/f = P I found another similar question which used 1/(the...

Homework Statement A student performs an experiment on an ideal gas by adding 5.000 J of heat to it. As a result the student finds that the pressure of the gas changes from 101.3 kPa to 150.0 kPa while the volume remains constant at 50.00 cm3 (i) By how much did the internal energy of...

Calculate how long it will take for the ice to melt?? Homework Statement A chilly bin has walls 5.90 cm thick and the total area of the walls is 0.700 m2. The chilly bin is loaded with 2.00 kg of ice at 0.00 °C and stood on a rack so that its entire surface is in contact with the air. The...