▼ Part C - Finding the spring constant As shown, Spring 3, which has an unknown spring constant k3, replaces Spring 2. The mass of the weight and pulley are unchanged: m = 5.7 kg and mp = 1.8 kg. However, because of the different spring constant the distance the pulley hangs below the ceiling is now, h = 117.0 cm. The unloaded length of Spring 3 is l' 32.5 cm; after hanging the mass and pulley, the spring's length is l3 = 38.5 cm. Determine the spring constant of Spring 3, k3. = (Figure 3) Express your answer to three significant figures and include the appropriate units. ► View Available Hint(s) k3= = Submit μᾶ Value Units Previous Answers Request Answer ?

A 12.0 kg weight hangs from a 7.50 m pole as illustrated in the diagram.  The pole has a mass of 8.0 kg.  Determine the tension in the cable, and the "Frictional" and "Normal" forces felt from the wall.

Item 2 Consider the following hanging mass system for the following problems. Before answering the questions below, draw two separate free-body diagrams of ring C and then ring B. Be sure the FBDS are neat a properly labeled. You will turn them in with your written work. (Figure 1) Figure 30° E 45° F 1 of 1 Part A cb Deturmine the tension developed in cable if cylindar E weighs 40 lb and 0= 15°. FCB= Submit ▾ Part B WF = 5 ΑΣΦ 11 vec Submit Request Answer If cylinder E weighs 40 lb and 0 = 15°, determine the weight of cylinder F. Express your answer with the appropriate units. 15. ΑΣΦ ↓↑ vec ? Request Answer ? lb 2 of 5

1. This arm is attached to a wall on the left. The right end is free hanging. Each section is 1.9m wide and 3.6m high. If the force at the end of the arm is F = 170.0N, what is the force in member 2? Use a positive number if it is in tension and a negative number if it is in compression.   2. This arm is attached to a wall on the left. The right end is free hanging. Each section is 1.2m wide and 3.0m high. If the force at the end of the arm is F = 150.0N, what is the force in member 9?  Use a positive number if it is in tension and a negative number if it is in compression.

Draw the free body diagram for this problem: The boom of the wall crane 4m long is held at right angles to the wall by a wire that is attached to the wall 3m above the foot of the boom. If the load lifted is 45000N, find the tension in the wire and the compression force in the boom. Neglect the weight of the boom.

5. The figure below represents the anatomy of the lower limb when balanced on your toes and the body weight acts through the tibia. The Achilles Tendon makes an angle (0) of 8° with the vertical and for this foot x1 is 6.2 cm and x2 is 12.3 cm. Calf Muscle Tibia Achilles Tendon Calculate the tension (T) in the Achilles Tendon if a 70 kg man stands on the toes of both feet. Using the values in this example what is the mechanical advantage for this lever and describe what that means in terms of the efficiency of the lever.

A uniform bar 6 m long is held by ropes at the ends making angle 60° and 30°, respectively, with the horizontal. A weight of 400 N is hung 1.0 m from the left end where the 60° rope is attached. Find the tension in the rope and the weight of the bar.

Solve it.

2.22 Calculate the centre distances for a v-belt drive given pulley pitch diameters of 180 mm (motor) and 400 mm (driven) when the belt is (a) an SPÁ 2 360; and (b) an SPB 3 800. [716 mm; 1 441 mm] Calculate the angle of contact on the smaller pulley for both cases. Determine the tension ratio if the groove ang- les are 38° and u is 0,25. (162°; 171

That is all the info they give me and I do need help with