A custodian pushes a 119 kg box across a level floor. The box moves at a constant velocity. The custodian pushes horizontally on the box with a force of 724 Newtons, what must be the friction force experienced by the box in Newtons?

Apossible long term health effects of stress would be work

What do you mean there’s no jelly beans

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. 

Answer///(d) atoms contain small,negatively charged particles;