P2.128 The 5-cm by 5-cm by 3.6-m spar buoy from Fig. P2.126 has 2 kg of steel attached and has gone aground on a rock, as in Fig. P2.128. Compute the angle 6 at which the buoy will lean, assuming that the rock exerts no moments on the spar. Wood SG = 0.6 %3D 2.4 m olin Seawater Rock
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- Part D B5.4 Part E B5.5 Part F В5.6 A 200 m bridge span is supported at both ends. The span weighs 100 tonnes. A 30 tonne bus is 50 m from one end of the span. Calculate the supporting force holding the bridge up at the end nearer the bus. Please give your answer to 2 significant figures. Value Units 7 Check my answer Part G B5.7V7physics Give me a solution 8. How will the value of angular momentum change if the mass and angular velocity is maintained but the radius of the circular path is reduced to half the original? A. Angular momentum will decrease by a factor of four. B. Angular momentum will be doubled. C. Angular momentum will be halved. D. Angular momentum will increase by a factor of four.
- 8. At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. People sit in seats facing the axis, their backs against the outer wall. At one instant the outer wall moves at a speed of 3.70 m/s, and an 87.0-kg Sferson feels a 565-N force pressing against I m Ssfs back. What is the radius of the chamber? 60 ss 60 s5. DETAILS Three boxes, A, B, and C, are placed on a frictionless surface as shown in the diagram below. с Additional Materials Reading OSCOLPHYS2016 4.5.WA.048. B If you push on box A with a force of 8.25 N, find the contact force (in N) between each pair of boxes. Here m 5.15 kg, ma 3.40 kg, and me 1.50 kg. contact force between A and B contact force between B and C MY NOTES PRACTICE ANOTHER NQuestion 1 25 A 380 kN horizontal force P is applied to a 210 kN box resting on an 25° incline. The line of action of Ppasses through the center of gravity of the box. The box Is 3.5 m wide x 3 m tall, and the coefficents of friction between the box and the surface are 14 -0.6 and 14% -0.51. Determine the magnitude of the friction force acting on the box. F'= The box is In static equilibrium Sliding up the incline Sliding down the incline. ○ Tipping
- 8. At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. People sit in seats facing the axis, their backs against the outer wall. At one instant the outer wall moves at a speed of 3.60 m/s, and an 87.0-kg person feels a 590-N force pressing against his back. What is the radius of the chamber? mAn object moves on xy plane according to the equation 7 = 20 cos(3t) î + (1,5t + 3,5t2)j. Determine its position at t = 0. Find its average velocity and average acceleration between t = 2s and t = 5s.Is it possible for an object with small mass to have a large momentum? a. Nonsense, objects have to be massive to have momentum. Ob.Nonsense, there is not enough mass. Oc. Yes, objects with low mass can have a lot of momentum if these are moving fast. Od. Yes all objects have momentum as long as they are moving. A Moving to another question will save this response. Question 12 of 55 esc # $ 1 3 4 Q W E -b A S F s lock D
- no handwritten answers... answer a, b and c...9. True or False questions. Circle the correct answer. a. An example of a Vector is Temperature. TRUE or FALSE b. In a vacuum, Heavier objects fall faster than lighter objects. TRUE or FALSE C. X values and Y values can be determined independently when performing calculations using Galileo's kinetic equations. TRUE or FALSE d. Static friction is a force that applied to object that is stationary. TRUE or FALSE e. When a spring is compressed, the spring is said to have potential energy. TRUE or FALSE f. A car crash is an example of an Impulse. TRUE or FALSE g. Centripetal force is not a new force. It is any combination of forces that cause an object to follow a path of circular motion. TRUE or FALSE h. Consider the following shapes: Cylinder, Hoop, Solid sphere, and spherical shell. The cylind has the greatest inertia. TRUE or FALSEPls help ASAP.