The emissions of particulates due to the burning of coal can be ...

[berenicecastro]

The emissions of particulates due to the burning of coal can be reduced by the use of ________.
 a. electrostatic precipitators
  b. scrubbers
  c. coal from strip mines of the Western US
  d. limestone
  e. catalytic converters

Question 2

A 3.0-kg block slides on a frictionless 20 inclined plane. A force of 16 N acting parallel to the incline and up the incline is applied to the block. What is the acceleration of the block?
 a. 2.0 m/s2 down the incline
  b. 5.3 m/s2 up the incline
  c. 2.0 m/s2 up the incline
  d. 3.9 m/s2 down the incline
  e. 3.9 m/s2 up the incline

[C.mcnichol98]

Answer to Question 1

a

Answer to Question 2

C