According to the sectoral shifts hypothesis:. a. frictional unemployment will cause workers to extend their temporary lay-offs.
b. most unemployed workers will return to their previous job because the firm knows the skills of the worker.
c. there will always be a pool of unemployed workers who experience spells of unemployment because they do not aggressively search for work cyclical unemployment will always exceed frictional unemployment.
d. there will be always be some level of unemployment because the skills of the workers do not match the skill requirements of employers.

a. frictional unemployment will cause workers to extend their temporary lay-offs.

Explanation:

Remember, frictional unemployment is a type of unemployment that is self-inflicted by workers who want to change jobs (sectorial shifting) within the same economy; thus, they quit their present job in search of a new one.

However, due to uncontrolled circumstances, they may extend their temporary layoffs or period of unemployment, making them become frictionally unemployed.

if kj of heat is transferred o 1200 g liquid water at 36'c, what would the new temperature of the water be? (he specific heat capacity of liquid water is 4.186 j/g''c)

a. 15'c

b.100'c

c.51'c

d.36'c

the first successful, urban blues recording, selling more than 75,000 copies, was made in year 1920.

mamie smith recorded the first commercially successful example of the urban blues,   with the recording of “crazy blues”."crazy blues" was recorded on august 10, 1920, in new york city. within a month of the release of “crazy blues” it had sold 75,000 copies.