Answer:
Base units are defined units based on specific objects or events in the physical world. Derived units are defined by combining base units.
Base units are defined by a particular process of measuring a base quantity whereas derived units are defined as algebraic combinations of base units. For example, length is a base quantity in both SI and the English system, but the meter is a base unit in the SI system only.
B. A pot of boiling water represents a system that is completely open.
<span>The stage of change that invloves the greatest commitment of time and energy is the action stage. The correct option is C. Change involves six basic steps which are:pre-contemplation. comntemplation, preparation, action, maintenance and termination. The most busy stage and the one that require the greatest commitment is the action stage.</span>
Answer:
the speed in -y
Explanation:
For this exercise we must use the right hand rule. The motion of a positive charge is given by.
Thumb points in the direction of speed
fingers extended in the direction of the magnetic field, + z axis
the palm in the direction of the force, as the charge is negative in the opposite direction of the force, axis + x
therefore the thumb is in the direction - y
the speed in -y