Justin designed an experiment to find out how running up bleachers affects his heart rate. First he records his resting
heart rate and then runs up the bleachers 10 times. Each time he reaches the top, he records his heartrate then rests 20
minutes.
Which is involved in Justin's experiment?
*replication
*repetition
*both repetition and replication
*neither repetition nor replication

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.

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?

An ascending elevator, hanging from a cable, is coming to a stop. part a part complete identify all forces acting on the elevator from the list below. select all that apply. select all that apply. kinetic friction normal force tension weight static friction submitprevious answers correct part b draw a free-body diagram of the object. draw the vectors starting at the black dot. the location and orientation of the vectors will be graded. the exact length of your vectors will not be graded but the relative length of one to the other will be graded.