Q2: In what way you will find out the centre of gravity for a non-uniform section?...
Q2: In what way you will find out the centre of gravity for a non-uniform section? Also Find the centroid of the lamina as shown in the figure. (8 Marks) 25 mm 23 cm 25 mm 20 cm 25 mm -35 cm N Subject is applied mechanic
-Ja A Figure 2: A model of a tennis racket 5. A tennis racket is modeled as a uniform lamina of an areal density ρ [kg m-2] that has a shape of an ellipse with the semi-major axis a and semi-minor axis b and a mass m 4Tbp with attached to it uniform rod of length 2a and mass m. The origin of the Cartesian system of coordinates Oryz is placed at the centre of the ellipse as shown in...
Question 4: (8 marks) For the lever below: a) Determine the centre of gravity relative to the pivot point A in the horizontal direction only (excluding the guide rod). b) Draw a free body diagram for the lever showing all the forces acting on it. If the lever is manufactured from steel of density 7000 kg/m determine the force in the spring required to hold the lever borizontal when the guide rod (weight 20 N) rests on the semi-circular end...
FIGURE Q2 shows cross-section of a rectangular doubly reinforced concrete beam. The concrete grade, fck is 20 N/mm2 and the steel grade, fyk is 500 N/mm2. Evaluate whether the beam has been designed as under reinforced section AND also determine if the section is able to resist an applied moment of 75 kN.m. [10 marks] 30 mm T 3H10 300 mm 5H12 30 mm 100 mm FIGURE Q2
A non-uniform magnetic field points out of the page as shown
below in the figure. The field increases at a constant rate of 2.0
mT as you move to the right. A square wire loop of 15 cm on a side
lies on a plane perpendicular to the field, and a 2.5 A current
circles the loop in the counter-clockwise direction. Calculate the
magnitude and direction of the net magnetic force on the loop
out 15 cm .
Question 1 (20 marks total) For the cross-section given in Figure 1, a) determine the distance y to the centroid; (10 marks) b) find the moment of inertia about the x'axis. (10 marks) V 30 mm 30 mm 70 mm 140 mm 30 mm 30 mm 170 mm Figure 1 Question 2 (20 marks total) For the beam in Figure 2, a) determine the reaction forces at A and B; (4 marks) b) develop shear and bending moment equations in...
2. A non-uniform magnetic field points out of the page as shown below in the figure. The field increases at a constant rate of 2.0 mT as you move to the right. A square wire loop of 15 cm on a side lies on a plane perpendicular to the field, and a 2.5 A current circles the loop in the counter-clockwise direction. Calculate the magnitude and direction of the net magnetic force on the loop. (10 pts) • • Bout...
QUESTION TWO (15 marks) A. A small chemical-industry tank fitted with a manometer as shown contains a dense fluid with specific gravity S 3.0 and 20 cm deep. Workers should have added water to a depth of 15 cm above the dense fluid. What height Ah do you expect to find when you inspect the tank? (7 marks) 15 cm Water Ah? 20 cm S 3.0 B. A sea-water aquarium is planned to have a circular window with diameter D-80...
PRAC on inertia, centre of gravity, centre of mass...What do
these equations represent? What am I trying to find???
What do these equations represent? What am I trying to
find???
.
if necessary, related info included:
i dont need to know the answers
Σή I, = m, Στή n, Mt 1, 12 (integer) Σrt I, = mm, Σr n, = ML?/1, (3 sig. fig.) ni (integer) 0.35 • Experiment 4 Determine the moment of inertia pre-factors for relation Mass of...
Q2 A main trunk duct of air-conditioning system shown in Figure 2 is rectangular in cross-section (40 cm x 80 cm). Air at atmospheric pressure and temperature of 20c flows inside the duct with velocity of 7 m/s. The cross sectional srea snd definition of characteristic length for the duct are given in Figure 2. The duct is assumed to be m long. The flow inside the duct is assumed fully developed. (a)Find properties of air using suitable value of...