Romeo (77.0 kg) entertains Juliet (55.0 kg) by playing his guitar from the rear of their boat (80.0-kg) at rest in still water, 2.70 m away from Juliet who isin the front of the boat. Juliet sits at the left end of the boat, 10 meters from shore. After the serenade, Juliet carefully moves to the rear of the boat (away from shore) to plant a kiss on Romeo's cheek. A) What is the CM of the person-boat system relative to the shore

Ireally just need to get finished with precal! i’m really sorry i have to do this! hope this !

  concave means having an outline or surface that curves inward like the interior of a circle or sphere. so the mirror curves inward.

stands for electromotive force and it is measured in volts. despite its name, it is not actually the force in the sense of being a "pushing" or "pulling" (not measured in newtons).an equation that relates emf,  ℰ,  to a battery's terminal voltage, v, current, i, and internal resistance, r, is    ℰ = v + irin this case, the emf can be interpreted as a voltage—a difference in electric potential.i would not say that it would be considered an energy. if emf can be defined as the energy/work per a unit charge from a battery or other electric source, then it is not strictly energy.