Circle the cases where the reactions shown make the arrow externally stable and determinate. Please explain the reasoning to learn what is being asked, thank you!

You are the engineer designing a truss to proudly display a Mavericks Logo in the Baxter Arena. The sign weighs 500lb. Please answer the following questions: The force and the character of the force in member EF is ___ lb and member EG is___lb

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Thank you, can you now please answer number 24

please answer legibly. no cursive please. thank you

A. What force does the crossbar exert on each beam? C. What is the magnitude of the force that the hinge at point A exerts on each beam? D. What is the direction of the force that the hinge at point A exerts on the right hand beam? E. What is the direction of the force that the hinge at point A exerts on the left hand beam?

Changes in temperature can cause large reaction forces in statically indeterminate members. Is it true or false? How?

Solve step by step please, thanks!

1) A ladder leans against a wall as shown below. A hammer is placed on one of the rungs (you can assume the hammer is pointlike). The ladder feels a force of friction from the ground, but there is no friction between the ladder and the wall. The length of the ladder is 20 ft The mass of the ladder 40 The inclination of the ladder 35 The height of the hammer 10 The mass of the hammer 25 (a) Draw the ladder. (b) Draw all forces acting on the ladder. (c) Set origin and axes. (d) Write the force balance on the ladder, both in x and y. (e) Write the torque balance on the ladder. (f) Determine the coefficient of friction between the ground and the ladder.

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Determine the resultant force at A. I’m not sure where I am making a mistake The Answer should be ( -620i + 610j - 540k)

Please show all work for this problem and step by step solutions

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