Case Study 3: A 3-year old girl presented at the emergency r…

Case Study 3: A 3-year old girl presented at the emergency room with bloody diarrhea, fever and vomiting. The child’s mother reported that the day-care center called yesterday morning because she started having a watery diffuse diarrhea.  That night she began to complain of severe cramps and her diarrhea became bloody and pus-filled.  The family has no recent travel history and while they are vegetarians, they only consume pasteurized milk, cheese, and egg products.  The gram stain showed many white blood cells and many gram-negative bacilli.  The culture resulted in many translucent-clear colonies on the MacConkey’s agar that were oxidase negative and fermented glucose, but not lactose.   She was admitted to the hospital to treat her dehydration and for observation.   Case Study 3 Question 3:  Which of the following is NOT a characteristic of the isolated organism?

Three blocks are in contact with each other on a frictionles…

Three blocks are in contact with each other on a frictionless surface. m1 = [m1] kg, m2 = [m2] kg, and m3 = [m3] kg. An external force F is applied to m3, causing the entire system of blocks to accelerate at [a] m/s². What is the magnitude of the force exerted by m3 on m2? Provide your answer in newtons (N).

Two blocks, m1 = 2 kg and m2 = 3 kg, are connected by a mass…

Two blocks, m1 = 2 kg and m2 = 3 kg, are connected by a massless rope on a frictionless surface. Block m1 is pulled by an external force of F=[F] N. At time t = 0, both blocks are moving with an initial speed of v0=[v0] m/s. What will be the speed of m1 after it has traveled [d] m from its position at t = 0? Express your answer in m/s.

A block (m=[m] kg) moves in a straight line. The velocity of…

A block (m=[m] kg) moves in a straight line. The velocity of the block as a function of time is shown in the figure. Given t1=1s, t2 = [t2] s and t3 = [t3] s, calculate the magnitude of the net force applied to the block during the time interval from t2 to t3. Express your answer in newtons (N). Note that magnitude is positive.