She uses a voltmeter, that measures in volts, and an ammeter that measures in amps. Both were correctly placed in her circuit. In her notes she wrote x = 0.15 z = 0.3 but did not indicate volts or amps, or which meter was which. The resistor on the left is 5 ohms. (A) Which was the ammeter? explain. (B) What is the voltage difference across each resistor? Explain. (C) What is the voltage of the battery? Explain.

At 20∘c, the hole in an aluminum ring is 2.800 cm in diameter. you need to slip this ring over a steel shaft that has a room-temperature diameter of 2.804 cm . 1. to what common temperature should the ring and the shaft be heated so that the ring will just fit onto the shaft? coefficients of linear thermal expansion of steel and aluminum are 12×10−6 k−1 and23×10−6 k−1 respectively.

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

Ajoint produces movement when its angle decreases. which type of movement is it?