Why is the tip of nib of fountain pen split?

A honzoatal plank 4.32m long and having mass 25.2 rests on two pivots, one at the /eft end and a seco ad 10 gm from the ryht end. tind Magnitide of the foree exerted on the plank by the second Avot N.

(a) Suppose that a beam is fixed at its ends x = 0 and x = L. Show that its shape is given by -(x* – 2Lx³ + L²x²). y(x) = 24EI

The uniform 19.0 kg beam below is 6.4 m long and is perfectly balanced about a point 1.4 m from the left end. What is the mass of the block? (Hint: when calculating the torque due to the weight of the beam, consider all of its mass to be located at its center of mass.)

Find the magnitude of the torque exerted by F on the bolt at P if PQ = 4 in. and F = 36 Ib. %3D 450 The magnitude of the torque exerted by F on the bolt at P is ..... ft-lb.

Aun is Q5/ If a Moment of M 300 N. m is applied to the flywheel, determine the force that must be developed in the hydraulic cylinder CD to prevent the flywheel from rotating. The coefficient of static friction between the friction pad at B and the flywheel is 0.4. 8/12 Hib 0.6 m 1m 30 IB 60 mm 0.3 m M = 300 N-m

Is it possible for two screw dislocations of opposite sign to annihilate each other? Explain your answer.

Below figure a rod of AB by the length of 8.0 m and mass of m2 = 35.0 kg is hinged at one end and the other end is attached to a cord and cord to the wall. A mass of m1= 40.0 kg is at 2.0 meter from the hinge and another mass with mass of m3 = 50 kg is at 5.0 meter from hinge. At this situation find amount of tension in cord and exerted force from wall on the hinge.

The 600-kg uniform I-beam supports the load shown. Determine the reactions at the supports. Answers: Ax Ay = = By = p -7.5 m- +4.5 m 285 kg N N N B