**Please Help ASAP** Follow the steps below to calculate the reaction forces at points A and C.

1. List the Static Equilibrium equations.
2. List all known and unknown forces acting and reacting on the truss structure. Label the direction of the force with an arrow. . Find the moment forces. Determined from Pin A .
3. Use the moment static equilibrium equation acting upon pin A to solve for
4. Solve for unknown reaction force in the x direction (). Use the sum of forces in the x direction equilibrium equation.
5. Solve for unknown reaction forces in the y direction. Use the sum of forces in the y direction equilibrium equation.

In general, how do thermosetting plastics compare to thermoplastics in mechanical and physical properties?

Tom is having a problem with his washing machine. he notices that the machine vibrates violently at a frequency of 1500 rpm due to an unknown rotating unbalance. the machine is mounted on 4 springs each having a stiffness of 10 kn/m. tom wishes to add an undamped vibration absorber attached by a spring under the machine the machine working frequency ranges between 800 rpm to 2000 rpm and its total mass while loaded is assumed to be 80 kg a) what should be the mass of the absorber added to the machine so that the natural frequency falls outside the working range? b) after a first trial of an absorber using a mass of 35 kg, the amplitude of the oscillation was found to be 10 cm. what is the value of the rotating unbalance? c) using me-3.5 kg. m, find the optimal absorber (by minimizing its mass). what would be the amplitude of the oscillation of the absorber?

Apure substance is a)-mixture of various chemical elements or compounds b)-substance that has a fixed chemical composition throughout c)-mixture that is homogeneous (such as air) d)-all the answers