Which of the following is the first step in the technological design process? HELP ASAP PLEASE!! due: 11/20/20

A. construct a prototype

B. evaluate the design

C. define a need or problem

D. research existing solutions

An electric current is flowing through the cord below.what will happen to this current if a magnet is brought near the cord? a. the electric current will stop flowing. b. it will exert a force on the voltage. c. the resistance of the wire will decrease. d. it will exert a force on the electric current.

Which statement is true? a. kepler's laws apply only to the motion of earth. b. kepler's laws can be used to predict eclipses. c. kepler's laws are true for a central force that is directly proportional to distance. d. kepler's laws can be deduced from newton's laws of motion and gravity.

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain