If you get scared when swimming, panicking just makes you breathe faster and uses up more precious energy. A. True
B. Flase

ANSWER ASAP

The boy of mass 30 kg is at r1= 2 meters from the fulcrum. of the girl is 45 kg, at what r2 must she sit so that they are balanced ?

Awater slide of length l has a vertical drop of h. abby's mass is m. an average friction force of magnitude f opposes her motion. she starts down the slide at initial speed vi. use work-energy ideas to develop an expression for her speed at the bottom of the slide. then evaluate your result using unit analysis and limiting case analysis. express your answer in terms of the variables h, m, l, vi, f and appropriate constants. vf v f

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2