A child is pulling two red wagons, with the second one tied to the first by a (non-stretching) rope. Each wagon has a mass of 14 kg. If the child exerts a force of 32 N for 6.0 m, how much has the kinetic energy of the two-wagon system changed?

Calculate the ratio of h+ ions to oh– ions at a ph = 6. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 6. are they the same? why or why not? record your explanation in table a. what is the concentration of h+ ions at a ph = 6? mol/l what is the concentration of oh– ions at a ph = 6? mol/l what is the ratio of h+ ions to oh– ions at a ph = 6? : 1

The energy released by a nuclear fusion reaction is produced when

Which of the following is not an appropriate unit for acceleration? (kg/12 mihr? m/min/sec cm/30c?