A meter stick balances on a knife edge at the 50.0 cm mark. When two coins are stacked over the 13.1 cm mark, the loaded stick is found to balance at the 34.2 cm mark. A coin has a mass of 5.1 g. What is the mass (in kilograms) of the meter stick

English can you write this in english do we can you

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.

Ithink the answer for this is: an electromagnet is a magnet  with a soft metal core.

Ibelieve the answer above is c but im not sure