Arectangular bar has a depth of d = 7 cm and a height of h = 3 cm . the bar is subjected to an axial load p = 400 n . what is the magnitude of the shear force on a plane at an angle θ = 50 ∘

SHEAR FORCE = 257.11 N

Explanation:

given data:

depth d = 7 cm

height h = 3 cm

P = 400 N

Area of cross section normal to P = 30*70 = 2100 mm2

Area of cross section (inclined portion) = A'

A' =2741.35 mm2

Taking summation of vertical force

v = 400*cos50° = 257.11 N

Average shear force =

Average shear force =

gans

explanation:

vestigial organs (like your appendix) are organs that no longer serve a purpose.

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.