You are holding a thin and weightless bar on your head (see figure 2.1). On the extremity A, the bar is attached to an elastic spring with unstressed length of 1 m and spring constant, k = 50 N/m; on the other extremity D, the bar is against a wall. On point C, a force F is applied, forming a 45-degree angle with the bar. Assign the length AE according to the height of your body. (a) What is the magnitude of the force F for the bar to rest horizontally? (b) If the force F was removed, what support would you need in D in place of the

A suspended date that's able to pivot from the top seperates two liquids. There is a stopper that prevents the gate opening anti-clockwise. The gate has a height of 0.5m. The liquid on the right is twice as dense as the liquid on the left. The liquid on the left has a depth of 0.3m. 1) What is the minimum depth of liquid on the right for the gate to open. 2) Comment on the ability to solve this question if the liquid on the left was 1m (filled to the top)

Pls help! ENGINEERING MECHANICS. RATE WILL BE GIVEN!  Mulitipe Choice Which of the following statements is correct?a.  All statements are correctb. A particle moving in a curved path with a constant speed has a zero acceleration. c.  A particle moving in a curved path with a constant speed has a non-zero acceleration. d.  A particle moving in a straight path with varying speed has a zero acceleration. e.  A particle moving in a straight path with a constant speed has a non-zero acceleration.

Can you please do 5.67.   Thx