You want to store 138 g of gas in a 13.8-l tank at room temperature (25 °c). calculate the pressure the gas would have using the ideal gas law and the van der waals equation

Where are the options ?

The answer is trial 3.

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.

The fuzzy edges of shadows are a result of  diffraction