(d) Design an underground rectangular tunnel drift, in a massive granitic rock with a UCS over 100 MPa, of width: 3.1 m, height: 4.1 m, and length 10 m, using an initial Burn-Cut method to create an extra surface for the next underground Bench-Blasting operation, where the idea is roughly illustrated in Figure A3-Q2. : VIII VII VIII VIII IV . IV VII IV IV Development leading Salad care andy VII Brech Blast hader 2 VII . VIII VII VII VII VIII Firing sequence for tunnel numerical order 1 Dorsegment healing Seldcre body Burn cut (after ICI) Arabic numerals: short delay periods Roasan nunerals: half-second periods xy-section view Derech Eros Batt holes Bench blasting methods (yz section view) Figure A3-Q2. Idea of new free surface creation in underground drifts and tunnels

what is Huebsher equation ?

500mis wooden b1ock so mis 30° bollet travelling So0 mis at 3 kg hits the blocu. It 'exi's the Othe Side. at. 50 mis. • Deteimine t (Hime) 1+ '+alkes for. the biocu Stop. Sliding

B/ The sprue leading into the runner of a certain mold has a length is 150 mm. The cross- sectional area at base of the sprue is 400 mm². The mold cavity has a volume is 0.002 m². Determine: (a) the velocity of the molten metal flowing through the base of the sprue, (b) the volume rate of flow, and (c) the time required to fill the mold cavity.

M4.17 Asteel shaft has a starting diameter= 15.00 mm. It is to be inserted into a hole in an expansion fit assembly operation. To be readily inserted, the shaft must be reduced in diameter by cooling Determine the temperature to which the shaft must be reduced from room temperature (20°C) in order to reduce its diameter to 14.98 mm. Use Table 4.1 from the book for reference. Round to the nearest 10th of a C

Answer 11.4!!

Please help me solve this.

Pipes for bicycle frames are made of(A) Cold rolled steel (B) Hot rolled steel (C) Forged steel (D) Cast steel

A round shaft, made of cold-finished AISI 1020 steel, is subjected to a variable torque whose maximum value is 7238 cm-kg. For N  5 on the Soderberg criterion, determine the diameter if (a) the torque is reversed, (b) the torque varies from zero to a maximum, (c) the torque varies from 3141 in-lb to maximum.

Solve asap.