:a laser beam is incident on two slits with separation d-0.038 mm. a screen is placed l-1.6 m from the slits. the wavelength of the laser light is a 4750 å. and θ2 are the angles to the first and second bright fringes above the center of the screen. otheex ee 25% part (a) express sin(91) in terms of d and λ. sin(θ 1) add v correct! 25% part (b) express sin(92) in terms of d and λ. sin(02) (2 a )yd correct 25% part (c) express the distance between the two bright fringes on the screen, y, in terms of θ1, θ2 and l. grade s deductic potentia 9 cotan(0) cotan(02) in(a)n 4 5 6 cos(0) | (.ilm-17 8 cos(α) cos(φ) submiss attempts per detailed sin(φ) tan(6) sin(0) tan(01) hint i give up! submit feedback: deduction per feedback hints: 0%, deduction per hint. hints remaining: 2 25% part (d) solve for the numerical value of y ¡n meters.

In the future, people will only enjoy one sport: electrodisc. in this sport, you gain points when you cause metallic discs hovering on a field to exchange charge. you are an electrodisc player playing the popular four disc variant. the disks have charges of qa = −8.0 µc, qb = −2.0 µc, qc = +5.0 µc, and qd = +12.0 µc. (1) you bring two disks together and then separate them. you measure the resulting charge of these two disks and find that it is +5.0 µc per disk. which two disks did you bring together? (a) a and b (b) a and c (c)a and d (d)b and c(e) b and d (f) c and d. (2) you bring three disks together and then separate them. you measure the resulting charge of these three disks and find that it is +3.0 µc per disk. which three disks did you bring together? a, b, and c (a) a, b, and d (c) a, c, and d (d) b, c, and d. (3) given the resulting charge of each disk measured in (b) is +3.0 µc, how many electrons would you need to add to a disk of this charge to electrically neutralize it? electrons