Please help asap !! number 1

Explanation:

Given parameters:

Distance covered  = 16m

Time  = 6s

Initial velocity  = 0m/s

Unknown:

Magnitude of the acceleration of the runner = ?

Solution:

To solve this problem, we have to apply the right motion equation which is given below;

     S  = ut +  at²  

S is the distance

u is the initial velocity

t is the time taken

a is the acceleration

 Now, insert the parameters and solve for acceleration;

      16  = (0 x 6) + x a x 6²

     16  = 18a

     a  =   = 0.89m/s²

an ion is a charged atom or molecule. it is charged because the number of electrons do not equal the number of protons in the atom or molecule. an atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.

a.   mass number from atomic number