Convert the following tempature to c. a) 67 k b) 1617 k

What is the ph of a 0.0010 m hno3? 1.0 3.0 4.0 5.0

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?

Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.