In the U.S., after the 1980s, the share of income that the top fifth (the highest quintile) received _________________. Select the correct answer below:

began to fall

began to rise

remained constant

peaked at 43%

Medicaid does not provide medical insurance to which of the following groups? Select the correct answer below:

1.families with children below the poverty line

2.blind and disabled individuals

3.adults who choose not to purchase health insurance

4.the elderly poor

Which of the following is an example of a public good? Select the correct answer below:

1.a flood warning alarm

2.a library

3.police

4.all of the above

write the quantum numbers for the electrons in the highest energy level of the atom? then write the four quantum numbers for the last electron added to the atom according the aufbau principle order.

1) scandium
2)indium
3) iron
4)iodine
5)osmium

A firework of mass 1kg is shot in the air. At the highest point of its trajectory the firework

has a velocity of 20m/s (horizontal) and explodes splitting into 2 parts, that fly off at 40° and 30°

relative to the initial trajectory (see diagram). Part 1 that moves off at 40° has twice the

magnitude of vertical velocity of part 2. Assume the total mass of the system doesn’t change,

and neglect any other possible forces on the objects.

a) Draw a detailed diagram of the situation labeling

properties and coordinates (5 points)

b) Use conservation of momentum in the vertical direction to

find the mass of each part after the explosion. (6 points)

c) Express the conservation of momentum in the horizontal

Find the speed of each part immediately after the explosion. (12 points)

d) Find the kinetic energy before the explosion. (3 points)

e) How much energy from the explosion turns into kinetic energy? (3 points)

f) what kind of a “collision” is this event, explain? (1 points)

1. In the agar, the highest concentration of your antibiotic is _____.

a)in a ring closest to the edge of the Petri plate

b)in a ring closest to the edge of the disk

c)in a ring halfway between the disk edge and the Petri plate edge

d)in a ring on the lid of the Petri plate

2.Why is it important to spread plate cells from a pure culture?

a)Mixed cultures may cause condensation on the lid of the plate, obscuring the results of the incubation.

b)Pure cultures are used because they respond uniformly to the antibiotic chemical.

c)Pure cultures tend to be non-motile, whereas mixed cultures might “swim” away from the disinfectant.

d)Actually, it doesn’t matter whether the culture is pure or not. Microbiologists opt to use pure cultures because they are easier to manipulate.

3.Why is it important to produce confluent growth, instead of individual colonies, on the Petri plate?

a)Confluent growth ensures that every bacterial cell on the Petri plate touches the Whatman disks.

b)Confluent growth ensures that the zones of inhibition are due to the activity of the antimicrobial chemical rather than a failure to grow.

c)Confluent growth ensures that the microbiologist has used aseptic technique to inoculate plates.

d)Actually, individual colonies are necessary to demonstrate that only one species is represented on the plate.

Based on these lab results, with which antibiotic should this patient with a Staphylococcus aureus infection be treated? Would any of these antibiotics be good candidates?

The antibacterial susceptibility test using disc diffusion method shows the susceptibility of S. aureus to methicilin with an inhibition zone diameter of 17 mm.

The acceptable standard diameter zones of inhibition for sensitive S. aureus for methicillin, ampicillin and vancomycin are >33 mm, >20 mm and >15 mm respectively (NCCLS, 1993).

Why?

(HINT: What would you call this S. aurues?)

1. In the agar, the highest concentration of your antibiotic is _____.

a)in a ring closest to the edge of the Petri plate

b)in a ring closest to the edge of the disk

c)in a ring halfway between the disk edge and the Petri plate edge

d)in a ring on the lid of the Petri plate

2.Why is it important to spread plate cells from a pure culture?

a)Mixed cultures may cause condensation on the lid of the plate, obscuring the results of the incubation.

b)Pure cultures are used because they respond uniformly to the antibiotic chemical.

c)Pure cultures tend to be non-motile, whereas mixed cultures might “swim” away from the disinfectant.

d)Actually, it doesn’t matter whether the culture is pure or not. Microbiologists opt to use pure cultures because they are easier to manipulate.

3.Why is it important to produce confluent growth, instead of individual colonies, on the Petri plate?

a)Confluent growth ensures that every bacterial cell on the Petri plate touches the Whatman disks.

b)Confluent growth ensures that the zones of inhibition are due to the activity of the antimicrobial chemical rather than a failure to grow.

c)Confluent growth ensures that the microbiologist has used aseptic technique to inoculate plates.

d)Actually, individual colonies are necessary to demonstrate that only one species is represented on the plate.

Based on these lab results, with which antibiotic should this patient with a Staphylococcus aureus infection be treated? Would any of these antibiotics be good candidates?

The antibacterial susceptibility test using disc diffusion method shows the susceptibility of S. aureus to methicilin with an inhibition zone diameter of 17 mm.

The acceptable standard diameter zones of inhibition for sensitive S. aureus for methicillin, ampicillin and vancomycin are >33 mm, >20 mm and >15 mm respectively (NCCLS, 1993).

Why?

(HINT: What would you call this S. aurues?)

how many electrons are in the highest energy orbital of the element copper?

which has the highest and lowest EN [ Cl, P, Br]

1. Which class of antibiotic carries the highest risk of allergic reaction?