Monochromatic green light of 560 nm is directed through two slits that are 3.9 μm apart. The angle of deviation of the first order maxima produced is A Enter your two-digit answer.
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- Use the bottom values as they are the average.A 14.0 Nm torque is applied to a rod (mass = 8.79 and length 1.510 m) that rotates about its end. If the rod starts from rest, how long does it take to make 15.0 rev? Use g=9.8An engine produces a net torque of 20 N-m. If it rotates at 110 rpm what is the rotational power of the engine? Choose 102 watts 209 watts 251 watts 230 watts
- a motor takes 8.00 s to go from 60rad/s to 140 rad/s at a constant angukar accerlation. the total.angle through which its shaft turns during this time is. Compute the torque under the following considerations: F=120 N , Θ=14.7∘, and r=6.6 mThe motor of a table saw is rotating at 3450 rev/min. A pulley attached to the motor shaft drives a second pulley of half the diameter by means of a V-belt. A circular saw blade of diameter 0.208 m is mounted on the same rotating shaft as the second pulley. (a) The operator is careless and the blade catches and throws back a small piece of wood. This piece of wood moves with linear speed equal to the tangential speed of the rim of the blade. What is this speed? (b) Calculate the radial acceleration of points on the outer edge of the blade to see why sawdust doesn’t stick to its teeth.
- 44Our refrigerated microcentrifuge has a rotor that has a 5.6 cm radius. If a protocol asks for a RCF of 1000g, what rpm should we set on the microcentrifuge?Motive power for the experimental 19.0-Mg bus comes from the energy stored in a rotating flywheel which it carries. The flywheel has a mass of 1510 kg and a radius of gyration of 415 mm and is brought up to a maximum speed of 3940 rev/min. If the bus starts from rest and acquires a speed of 74 km/h at the top of a hill 54 m above the starting position, compute the reduced speed N of the flywheel. Assume that 9 percent of the energy taken from the flywheel is lost. Neglect the rotational energy of the wheels of the bus. The 19.0- Mg mass includes the flywheel. Answer: N = i rev/min
- A 10 kg, 0.5 m radius wheel running at 1800 rpm develops a torque of 50 KNm. Find the power ( KW ) transmitted by the wheel. O 6 783 8 216 O 9 425 10 062At t=0 the current to a dc electric motor is reversed, resulting in an angular displacement of the motor shaft given by 0(t) =( 240 rad/s)t—( 20.9 rad/s² )t²—( 1.60 rad/s³ )t³.Knowing that a 6-in.-diameter disk rolls at a constant velocity down a 2 percent incline, determine the coefficient of rolling resistance between the disk and the incline.