A huntress and her dog set off on a trip towards a hut that is 2 km away. The dog races ahead at 4 m/s (twice the speed of the huntress), reaches the hut, turns around and comes back to the her. a)How far along the trail do they first meet? (in metres)

b)After how long do they meet? (in minutes)

c)The dog keeps running back and forth along the trail between the hut and his companion until she arrives at the hut. How far in total does the dog travel? (in metres)

Calculate the minimum energy required to remove one proton from the nucleus 126c. this is called the proton-removal energy. (hint: find the difference between the mass of a 126c nucleus and the mass of a proton plus the mass of the nucleus formed when a proton is removed from 126c.) express your answer with the appropriate units. emin e m i n = nothing nothing request answer part b how does the proton-removal energy for 126c compare to the binding energy per nucleon for 126c, calculated using eb=(zmh+nmn−azm)c2?