An object of mass 20 kg is raised vertically through a distance of 8.0 m above ground level. using g=10 m/s^2 what is the potential energy of this object at this position? a.)160 nn b.)1600 nm c.)160 n/m d.)1600 n/m

In a load, the load is paralel to the shaft. n a. angular n b. thrust n c radial n d. none of the above

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

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain