A box with a weight of 100 N rests on a horizontal floor. The coefficient of static friction is = 0,40 and the coefficient of kinetic friction = 0,30. Determine the frictional force acting on the box if a horizontal force is applied with a magnitude of: a) O N; b) 20 N; C) 40 N; d) 60 N

Describe the path of a ray that approaches a mirror parallel to the principal axis.

1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? yourunits 3. a clothes dryer uses about 2 amps of current from a 240 volt line. how much power does it use? yourunits 4.

Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o