A carbon dioxide cylinder at a pressure of 540 kPa and a temperature of -3°C is delivered to a restaurant. What is the pressure inside the cylinder (in atmospheres) after it warms to room temperature 27°C ?

2.77 x 10^-3 its for plato user 

Gotta have a picture ^^

The boat's velocity relative to the riverbank can be resolved into two components. the component going north is 2.7 m/s and the component going west is 1.2 m/s.we add these two vectors and then find the magnitude of the resultant to get the speed.the magnitude of the resultant vector from adding can be obtained by the pythagorean theorem.    to two significant figures, the boat's speed relative to the riverbank is 3.0 m/s.