The beam supports the triangular distributed load shown below with wmax

$=500$ lb$/$ft

$.$ The reactions at A

and B

are vertical. $($Figure $1)$ The beam supports the triangular distributed load shown below with

$w_{\text{m}\text{a}\text{x}}=500l\frac{b}{f}t.$ The reactions at A and $B$ are vertical. $($Figure $1)$

Part A: Determine the magnitude of the resultant internal normal force on the cross section at point D$.$ Express your answer in kilopounds to three significant figures.

Part B: Determine the magnitude of the resultant internal shear force on the cross section at point D$.$ Express your answer in kilopounds to three significant figures.

Part C: Determine the magnitude of the resultant internal bending moment on the cross section at point D$.$Express your answer in kilopound$-$feet to three significant figures.

Part D: Determine the magnitude of the resultant internal normal force on the cross section at point E$.$Express your answer in kilopounds to three significant figures.

Part E: Determine the magnitude of the resultant internal shear force on the cross section at point E$.$Express your answer in kilopounds to three significant figures.

Part F: Determine the magnitude of the resultant internal bending moment on the cross section at point E$.$ Express your answer in kilopound$-$feet to three significant figures.