Object sliding across the floor initially moves with a speed of 13.20 meters per second, to the right. After 5.3 seconds, its speed is 3.80 meters per second, to the right. (a) What is the object's acceleration during this time? m/s2, to the right
(b) What is the coefficient of kinetic friction between the object and the floor?

An atom that has fewer electrons that protons is called a positive ion.

There is no graph to look at on here, but i shall explain them to you. a line graph is just in its title it’s a graph with a line running through the dots to show an increase or decrease. a bar graph is used to show how much or how little something is so a comparison. a scatter plot is used to graph points to tell the data. and i don’t know what a histogram is.

Aand b antarctica is a north pole.  field lines enter earth near the north pole.the magnetic pole near antarctica is a north pole.compasses point toward a magnetic pole that is a north pole.field lines circle earth from east to west.a compass can lead a hiker to the geographic north pole.

In atoms, the electron carries a negative elementary or unit charge; the proton carries a positive charge. the two types of charge are equal and opposite. in an atom of matter, an electrical charge occurs whenever the number of protons in the nucleus differs from the number of electrons surrounding that nucleus.