Atriangular plate with height 6 ft and a base of 8 ft is submerged vertically in water so that the top is 4 ft below the surface. express the hydrostatic force against one side of the plate as an integral and evaluate it. (recall that the weight density of water is 62.5 lb/ft3.)

Explanation:

Recall weight density of water 62.5 lb/ft^3 and the height 6ft base 8ft

The width of the triangle

The hydrostatic force is the pressure times area of the submerged

whitney would be experiencing fear or unintentional terror

answer: the correct answer is 1.

explanation: there are various process in which a radioactive nuclei decays:

1) alpha decay: in this process, a heavier nuclei decays into lighter nuclei by releasing alpha particle. the mass number is reduced by 4 units.

2) electron capture: in this decay process, a parent nuclei absorbs an electron and gets converted into a neutron. simply, a proton and an electron combines together to form a neutron. mass number does not change in this process.

3) gamma ray emission: it is a decay process in which an unstable nuclei gives excess energy by a spontaneous electromagnetic process. this decay releases . this process does not change the mass number.

4) positron emission: it is a type of decay process, in which a proton gets converted to neutron and an electron neutrino. this is also known as -decay. in this the mass number remains same.

from the above information, we see that only alpha-decay is producing a change in the mass number of the nucleus.