An airplane needs to head due north, but there is a wind blowing from the northeast at 50 km/hr. the plane flies at an airspeed of 700 km/hr, to end up due north, the pilot will need to fly the plane preview degrees east of north.

The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z