Frieda stands on a hill with a slope of 23 degrees. if her mass is 59 kg, what is the magnitude of the normal force acting on her?
a. 532 n
b. 578 n
c. 419 n
d. 226 n

Farmer a has a deep well and needs a lot of water for her animals and crops. her neighbor, farmer b, has a shallower well. he needs less water than farmer a because his farm is smaller. in years of drought, sometimes farmer b can't get any water from his wells. what can farmer b do to decrease the likelihood of his well running dry?