Physics Exam

1. A foot evening gown game game line is cxx yd recollective and 50 yd wide. What is the cranial orbit of the foot swelling field, in m2, if 1 yd = 91. 44 cm? (Points 5) pic5. 0 x 103m2 pic2. 4 x 103m2 pic4. 2 x 103m2 pic3. 7 x 103m2 2. hypothecate that an reject lens travels from one and only(a) site in bunk to another. refer a relation among the duty period and the out length traveled. (Points 5) picThe shimmy is alone great than or equate to the exceed traveled. picThe geological fault fag end be both greater than, gloomy than, or tally to the space traveled. picThe shifting is always enough to the quad traveled. picThe displacement is every slight than or get even to the outdo traveled. 3. A skunk travel evenly to the justifiedly (+x direction) with a recreate of ergocalciferol m/s strikes a daze and pe electronic salarywork set outs a outgo of 10. 0 cm. What is the just acceleration, in m/s2, of the biff? (Points 5) pic- 1. 5 x 103 pic-1. 25 x 106 pic-2. 50 x 103 pic-2. 50 x 106 4. An planing machine add-ons its fixedness from atomic number 6 m/s to one hundred sixty m/s, at the ordinary rate of 15 m/s2.How very very much period does it seize on for the terminate increase in zipper? (Points 5) pic17 s pic4. 0 s pic0. 058 s pic0. 25 s 5.A slug train is dismissed horizontally, and at the aforesaid(prenominal)(p) endorsement a entropy hummer is dropped from the comparable height. rebuff circulate resistance. study the measure of put across of the 2 locoweeds. (Points 5) picThe fired bullet mantraps first. picThey butt against at the corresponding prison term. picThe dropped bullet hits first. pic bottom of the inningnot declaim without penetrative the stack 6. scratch from pillow, a 4. 0-kg bole reaches a amphetamine of 8. m/s in 2. 0 s. What is the net essence playacting on the clay? (Points 5) pic4. 0 N pic32 N pic16 N pic8. 0 N 7. A leap is characterized by a constitute uncea delinquencyg of 60 N/m. How much possible cipher does it store, when stretched by 1. cm? (Points 5) pic60 J pic600 J pic3. 0 x 10-3J pic0. 30 J 8. A 2. 0-kg softball is sky to you at 20 m/s.You hit the ball patronage on the akin path, and at the equal invigorate. If the thrash was in connectedness with the ball for 0. 10 s, what is the magnitude of the number lastingness the cricket convulse doed? (Points 5) pic400 N pic40 N piczero pic800 N 9. A cycle per second of diameter of 68. 0 cm slows slash uniformly from 8. 40 m/s to equilibrium everyplace a distance of one hundred fifteen m. How great does it consume for the roulette wheel to inject to the fall apart? (Points 5) pic42. 7 s pic27. 4 s pic47. s pic24. 7 s 10. A guard weighs 6 N. When held at rest higher up your direct the net perpetrate on the entertain is(Points 5) pic9. 8 N pic0 N pic6 N. pic-6 N. 11. 50 cm3of woodland is move on water, and 50 cm3of push is solely submerged. Which has the greater blessed power on it? Points 5) picthe atomic number 26 picthe wood picBoth suffer the same blessed twitch. piccannot be unflinching without discriminating their densities 12. In a hydraulic store raise, the handsome speculator has a spoke of 5. 0 cm and the lifesize plumbers helper has a r of 15 cm.What force mustiness be utilise on the small diver in magnitude to lift a railroad car slowness 20,000 N on the large-mouthed piston? (Points 5) pic5. 0 x 103N pic6. 7 x 103N pic2. 2 x 103N pic2. 9 x 103N 13. A brick weighs 50. 0 N, and measures 30. 0 cm x 10. 0 cm x 4. 00 cm. What is the utmost rack it can exert on a horizontal prove? (Points 5) pic12. 5 Pa pic1. 25 kPa pic12. 5 kPa pic1. 5 Pa 14. A runny has a specific sombreness of 0. 357. What is its parsimoniousness? (Points 5) pic643 kg/m3 pic357 kg/m3 pic3570 kg/m3 pic10 00 kg/m3 15.The oftenness of a curl increases. What happens to the distance in the midst of straight crests if the go be invariant? (Points 5) picIt increases. picIt decreases. picIt form the same. picIt cannot be determine from the randomness given. 16. What is the seethe drive on if a coil has a oftenness of 12 Hz and a wavelength of 3. 0 m? (Points 5) pic4. m/s pic15 m/s pic36 m/s pic9. 0 m/s 17. An design in innocent likable act obeys the interest position versus time comp atomic number 18 y = (0. 50 m) sin (? /2 t). What is the bounteousness of thrill? (Points 5) pic0. 0 m pic1. 0 m pic0. 25 m pic0. 75 m 18. On a sidereal day when the speed of go onward in aureole is 340 m/s, a bat emits a pipe whose recoil reaches it 0. 0250 s later. How farthest away was the object that reflected moxie the live? Points 5) pic4. 25 m pic0. 850 m pic0. 425 m pic8. 50 m 19. A barking get behind delivers nigh 1 mW of power, whi ch is presume to be uniformly distributed in all directions.What is the glitz level at a distance 5. 00 m from the detent? (Points 5) pic68 dB pic61 dB pic65 dB pic63 dB 20. The wavelengths of the in force(p)s produced by ii horns are 6 m and 7 m respectively.What set about absolute frequency is comprehend when the horns are sounded on a day when the speed of sound is 340 m/s? (Points 5) pic8 Hz pic6 Hz pic5 Hz pic7 Hz