ce 24: Module 4 9 Assignment Booklet 4B 10. A 3-point belt, when worn properly, should fit A. snugly across the pelvis and loosely across the chest B. snugly across the pelvis and snugly across the chest C. loosely across the pelvis and loosely across the chest D. loosely across the pelvis and snugly across the chest 11. A 4-point seat belt distributes forces more evenly across your and restrains both

ce 24: Module 4 9 Assignment Booklet 4B 10. A 3-point belt, when worn properly, should fit A. snugly across the pelvis and loosely across the chest B. snugly across the pelvis and snugly across the chest C. loosely across the pelvis and loosely across the chest D. loosely across the pelvis and snugly across the chest 11. A 4-point seat belt distributes forces more evenly across your and restrains both

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter9: Statics And Torque

Section: Chapter Questions

Problem 33PE: A 75-kg man stands on his toes by exerting an upward force through the Achilles tendon, as in Figure...

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Please answer it within 30 minutes. I will upvote! Problem: A useful instrument for evaluating fibromyalgia and trigger-point tenderness is the doloriometer (or algorimeter). This device consists of a force meter attached to a circular probe that is pressed against the skin until pain is experienced. If the reading of the force meter is 14.0 N (3.15 lb ), and the diameter of the circular probe is 1.44 cm , what is the pressure applied to the skin? Give your answer in pascals.
Suppose the biceps muscle was attached through tendons to the upper arm dose to the elbow and the forearm near the wrist. What would be the advantages and of this of construction for the motion of the arm?
Unlike most of the other muscles in our bodies, the masseter muscle in the jaw, as illustrated in Figure 9.44, is attached relatively far from the joint, enabling large forces to be exerted by the back teeth. (a) Using the information in the figure, calculate the force exerted by the lower teeth on the bullet. (b) Calculate the force on the joint.
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Explain how dumbbell curls (flexing the elbow while holding dumbbells) with (A) the forearms supinated and (B) the forearms pronated signifncalty alter the demands placed on the elbow flexors. Mention the muscles involved in your answer. Edit View Insert Format Tools Table 12pt v Paragraph v |BIU A ev T? v :
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5. The biceps exerts a pulling force of 800 N on the radius. The force acts at an angle of 30 degree in the anterior Fx and superior Fy direction. Calculate the force Fx that flexes the elbow joint as shown in the diagram. (Given that cos 30-0.866 and sin 30=0.5). Fy a.400 b.693 c.512 d.122 e.330 Ans:c Fx 800 N
Three loads are applied to a beam as shawn. The beam is supported by a roller at A and a pin at B. Neglecting the weight of the beam, determine the reactions at A and B when P = 15 kips. -3ft
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23. The diagram below shows a door viewed from above. Much to their parent's annoyance, two kids are fighting over opening/closing the door - do not do this at home! (Note that the door does not have a latch exerting any force on it) The diagram below shows the force that child A is exerting on the door: of magnitude F in the south direction, a distance of L/3 from the hinge. N wefe W E S F hinge L/3 L Child B decides to exert a force on the edge of the door, as far as possible from the hinge. What is the magnitude and direction of the force that child B must exert if the door does not move? A) Force of magnitude F in the north direction B) Force of magnitude F in the east direction C) Force of magnitude F/3 in the north direction D) Force of magnitude F/3 in the west direction
A. Explain why placing your hands behind your head rather than placing them on your stomach makes sit-ups more difficult. B. Explain why it is easier (it requires a smaller force) to open a large jar than a small one.
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