According to the food and drug administration, " ultraviolet (uv) radiation from these devices [sunlamps and tanning beds] poses serious health risks." as a result of reading this, the local mayor decides to introduce legislation that will put a 10% excise tax on tanning consumers. from an economic point of view, this will
a. shift the demand curve rightward for tanning. b. shift the demand curve leftward for tanning. c. shift the supply curve rightward for tanning. d. move down along the demand curve for tanning.

B

Explanation:

Because the tax was imposed to tanning consumers, the demand will be affected and not the supply ( because the tax was not imposed for producers). With the new tax, the price of using tanning beds will increase. This will lead to a decrease in demand because less people are willing to pay the extra imposed by the tax. In the demand and supply graph for the tanning beds market, the demand curve will shift to the left.

a. formula: f=ma or f/m=a

10,000n/1,267kg≈7.9m/

b. formula: a= and s=d/t

speed= 394.6/15

s=26.3m/s

a=

a=1.75m/

c. 7.9-1.75=difference of 6.15m/

d. the force that most likely caused this difference is friction forces

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.