Physics, 25.10.2019 01:43 destinyterrea
Atwo-spindle drill simultaneously drills a ½-in hole and a ¾-in hole through a workpiece that is 1.0 in thick. both drills are twist drills with point angles of 118°. the cutting speed for the material is 300 ft/min. the rotational speed of each spindle can be set independently. the feed rate for both holes must be set to the same value because the two spindles feed at the same rate. the feed rate is set so the total metal removal rate of both drills does not exceed 1.50 in3/min. determine (a) maximum feed rate (in/min) that can be used, (b) individual feeds (in/rev) for each hole, and (c) cutting time to drill the holes.
Answers: 3
Physics, 22.06.2019 11:20, leandrogarin37p2g5ds
Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.
Answers: 1
Physics, 22.06.2019 11:30, lifeofabe214
Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?
Answers: 1
Physics, 22.06.2019 16:50, Walkman2092
Calculate the first and second velocities of the car with four washers attached to the pulley, using the formulas v1 = 0.25 m / t1 , and v2 = 0.25 m / (t2 – t1) where t1 and t2 are the average times the car took to reach the 0.25 and the 0.50 meter marks. record these velocities, to two decimal places, in table e.
Answers: 2
Atwo-spindle drill simultaneously drills a ½-in hole and a ¾-in hole through a workpiece that is 1.0...
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