Water vapour is a gas. Gases change state when they cool. A volume of 2.5 × 10^–5 m3 of condensation forms on a bathroom mirror.
Density of water = 1000 kg / m3
Specific latent heat of vaporisation of water = 2.26 × 10^6 J / kg.
Calculate the energy released when the condensation forms.

E =m L

Identify the forces that contribute to the centripetal force on the object in each of the following examples: a. a bicyclist moving around a flat, circular track b. a bicycle moving around a flat, circular track c. a racecar turning a corner on a steeply banked curve

Suppose that two tanks, 1 and 2, each with a large opening at the top, contain different liquids. a small hole is made in the side of each tank at the same depth 1.57 m below the liquid surface, but the hole in tank 2 has 2.49 times the cross-sectional area of the hole in tank 1. (a) what is the ratio ρ1/ρ2 of the densities of the liquids if the mass flow rate is the same for the two holes? (b) what is the ratio rv1/rv2 of the volume flow rates from the two tanks? (c) at one instant, the liquid in tank 1 is 14.9 cm above the hole. if the tanks are to have equal volume flow rates, what height above the hole must the liquid in tank 2 be just then?

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.