The block brake consists of a pin-connected lever and friction block at b. the coefficient of static friction between the wheel and the lever is μs = 0.3, and a torque of 5 n⋅m is applied to the wheel. determine if the brake can hold the wheel stationary when the force applied to the lever is (a) p = 30 n, (b) p = 70 n.

Ahanging spring stretches by 35.0 cm when an object of mass 450 g is hung on it at rest. in this situation, we define its position as x = 0. the object is pulled down an additional 18.0 cm and released from rest to oscillate without friction. what is its position x at a moment 84.4 s later? express your answer in cm.

Asquare 1m x 1m plate is shown below. all four of its edges are kept at 0 co. at t=0the temperature distribution is given by: y xtsins n75)=.a) using separation of variables determine the temperature distribution t(x,y,t)along the plate at any time t.b) discretize the heat conduction equation +=22222 txtusing a second-order centered difference scheme for the two second derivatives and a first-order forward euler scheme for the first derivative. using von neumann stability analysis, determine the stability criterion for the proposed discretization scheme in terms of , hand t. solve for the maximum allowable time step tmax

A36,287 kg truck has a momentum of 907,175 kg • . what is the truck’s velocity