Anita is running to the right at 5 m/s , as shown in (figure 1) . balls 1 and 2 are thrown toward her by friends standing on the ground. according to anita, both balls are approaching her at 16 m/s .
according to her friends, with what speed was ball 1 thrown?
according to her friends, with what speed was ball 2 thrown?

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

A980-kg sports car collides into the rear end of a 2300-kg suv stopped at a red light. the bumpers lock, the brakes are locked, and the two cars skid forward 2.6m before stopping.the police officer, estimating the coefficient of kinetic friction between tires and road to be 0.80, calculates the speed of the sports car at impact. what was that speed?

What caused magnetic fields? what happens if you keep breaking a magnet in two until you reach a single atom?