Rachel was riding her bike at a velocity of 9 m/s to the east. Her velocity changed to 6 m/s to the east. What was her change in velocity?
A. 9 m/s east
B. 6 m/s east
C. -3 m/s east
D. 3 m/s east

tracks, burrows, eggshells, nests, tooth marks, or gastroliths

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.

weight of any object is given by

w = m*g

where m is mass of the object and g is the acceleration due to gravity.

for earth the value of g is 9.8 m/s^2 so

w=117.6 n m=12 g=?

117.6=12g => g=9.8 m/s^2

which is the force of gravity on earth.