Carlos is trying to figure out the best place to put his router in order to het the best signal. which is not an independent variable? a) distance from the wall b) signal strength at the computer c) the number of walls between the router and computer d) the number of devices on the router

B) signal strength at the computer

Explanation:

The independent variable in the experimental setup can be changed or manipulated so as to know it's influence over the dependent variable which is the outcome of the experiment.

Here, the signal strength of the computer is the dependent variable which is obtained due to the position of the router which is the independent variable. The distance from the wall, the number of walls between the router and computer and the number of devices on the router all are the examples of the independent variable.  

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.