7. A perfectly competitive market a. is often found in the real world

c. is necessary for markets to be useful.

b. requires a set of ideal conditions

d. demonstrates the need for subsidies and
outcomes.
price ceilings

8. Deficiency payments are part of a federal program to assist
a. farmers.
C. consumers.
b. senior citizens.
d. college students.

An automobile steering wheel is shown. what is the ideal mechanical advantage? if the ama is 8, what is the efficiency of the steering wheel?

Currents in dc transmission lines can be 100 a or higher. some people are concerned that the electromagnetic fields from such lines near their homes could pose health dangers. for a line that has current 150 a and a height of 8.0 m above the ground, what magnetic field does the line produce at ground level? express your answer in teslas and as a percentage of the earth’s magnetic field, which is 0.50 g. is this value cause for worry?

Identify the type of heat transfer occurring when chocolate melts in your hand