Rounded to the nearest whole number, how many protons are in an atom of krypton

Explanation:

Atomic number of krypton is 36 and atomic mass of krypton is 84 g/mol.

As, atomic number of an atom is the sum of total number of protons present in an atom. On the other hand, atomic mass is the sum of total number of both protons and neutrons present in an atom.

Therefore,    atomic mass = no. of protons + no. of neutrons

                                84 = 36 + no. of neutrons

                         no. of neutrons = 84 - 36

                                                   = 48

Therefore, we can conclude that in an atom of krypton there are 36 protons.

the electric field is a “force field” around a charged object that illustrates the direction the electric force would push an imaginary 

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft