Anyone in the with this error or only me???

What color would an object that reflects green and blue light appear to be in white light? a. blue b. cyan c. magenta d. black

Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied.

Asmall 21 kilogram canoe is floating downriver at a speed of 1 m/s. what is the canoe's kinetic energy?