Which is true about mass and weight? Group of answer choices

Mass is measured with a spring scale.

Mass must be in kg and weight in N to do our calculations.

Mass and weight are the same thing.

Mass depends on location, weight is the same everywhere.

Objects dropped in a vacuum (no air) will fall at different rates because they have different weights.

You need to be more specific.  i really don't know what a "motion map" is.you can draw a graph of an object's position, distance, displacement, speed,velocity, or acceleration versus time, or you can draw a graph of the object's x-position versus its y-position and not give any information about time at all.if the graph presents position or displacement against time,  then constant velocity is a straight line . . i.e. a line that has  constant slope.if the graph shows speed against time, then constant velocityis a horizontal piece of line.if the graph shows acceleration against time, then constant  velocity is a piece of line that lies on the x-axis . . it's value is zero. 

All are great precautions but you can still lift lighter and different muscles in between hard workdays. this keeps other muscles not usually used in shape.

Answerthe valence of an element or radical is equal to the number of positive or negative charges on the ion.

The answer is d, you can easily test a theory! hope i you : )