For a particular multi-electron atom, application of the variational approach using an effective nuclear charge parameter Z 0 results in the following expression for E(Z 0 ), where a is a constant and energy is in atomic units (Hartree): E(Z 0 ) = −Z 0 e −aZ0 Determine the variational parameter Z 0 and the (minimum) variational energy.

explanation:

could i give you a exaplo that could you?

no. dot product   =0 when vecs at right angles

talk back to him about the sport and show him your expertise or leave the room

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.