2. A swimmer swims 1 m/s due north against a current of 3 m/s due south. What is the resultant velocity of
the boat?

The answer is 4f======since electrostatic force is given by    we let f be the electrostatic force when  r = 1 m    if we let  denote the electrostatic force when the distance is decreased so that r = 0.5m, then    we established earlier that f = kq₁q₂. therefore    the force will now be 4f.

The inference is supported by evidence in the graph is this is an exothermic reaction where the total release of energy equals a + c.

Answer/guglielmo marconi

Forensic anthropologists