Marcia has undergone a computed tomography scan. It has been determined that she has a tumor in the thymus gland (thymoma). After further testing, her doctors conclude that she has what disorder?
A.
myasthenia gravis
B.
HIV/AIDS
C.
multiple sclerosis
D.
fungemia
E.
mononucleosis

Which of the following represents an upright image? a. -do b. +m c. -m d. +do

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final

Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?