Water enters a 4.00-m3 tank at a rate of 6.33 kg/s and is withdrawn at a rate of 3.25 kg/s. the tank is initially half full.
how long does it take for the tank to overflow?

Explanation:

The given data is as follows.

            Volume of tank = 4

             Density of water = 1000

Since, the tank is initially half-filled. Hence, the volume of water in the tank is calculated as follows.

Also, density of a substance is equal to its mass divided by its volume. Therefore, initially mass of water in the tank is as follows.

                    Mass =

                              =

                              = 2000 kg

Whereas mass of water in tank when it is full is as follows.

                     Mass =

                               =

                               = 4000 kg

So, net mass of the fluid to be filled is as follows.

                  Net mass to be filled = Final mass - initial mass

                                                      = 4000 kg - 2000 kg

                                                      = 2000 kg

Mass flow rate = 6.33 kg/s

Mass flow rate = 3.25 kg/s

       Time needed to fill tank =

                                       =

                                       =

                                       = 649.35 sec

Thus, we can conclude that 649.35 sec is taken by the tank to overflow.

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates