- 1 Positive 2 Negative 3 Zero This Print Out Should Have 24 Questions Multiple Choice Questions May Continue On The N 1 (72.08 KiB) Viewed 33 times
- 1 Positive 2 Negative 3 Zero This Print Out Should Have 24 Questions Multiple Choice Questions May Continue On The N 2 (41.91 KiB) Viewed 33 times
1. positive 2. negative 3. zero This print-out should have 24 questions. Multiple-choice questions may continue on the next column or page find all choices before answering 001 (part 1 of 2) 10.0 points a) What is the kinetic energy of an automobile with a mass of 1232 kg traveling at a speed of 10 m/s? Answer in units of J. 007 (part 4 of 5) 10.0 points Find the work done by the normal force. Answer in units of J. 008 (part 5 of 5) 10.0 points What is the net work done on the block? Answer in units of J. 002 (part 2 of 2) 10.0 points b) What speed would a fly with a mass of 0.562 g need in order to have the same kinetic energy as the automobile? Answer in units of m/s. 003 10.0 points A 7.33 kg bowling ball moves at 4.49 m/s. How fast must a 2.34 g Ping-Pong ball move so that the two balls have the same kinetic energy? Answer in units of m/s. 004 (part 1 of 5) 10.0 points A 15.8 kg block is dragged over a rough, hor- izontal surface by a constant force of 126 N acting at an angle of angle 29.90 above the horizontal. The block is displaced 65.5 m and the coefficient of kinetic friction is 0.158. 009 10.0 points A crate is lifted vertically 1.5 m and then hold at rest. The crate has weight 100 N (ie, it is supported by an upward force of 100 N) How much work is being done to hold the crate 1.5 m above the ground in this way? 1. A bit less than 150 2. 150 J 3. No work is being done. 4. More than 150J 5. None of these 010 10.0 points A cart loaded with bricks has a total mass of 23.4 kg and is pulled at constant speed by a rope. The rope is inclined at 30.6de- grees above the horizontal and the cart moves 27.2 m on a horizontal floor. The coefficient of kinetic friction between ground and cart is 0.522 The acceleration of gravity is 9.8 m/s How much work is done on the cart by the rope? Answer in units of kJ 011 (part 1 of 3) 10.0 points Assume you are on a planet similar to Earth where the acceleration of gravity 9 10 m/s A plane 50 m in length is inclined at an angle of 16,3° as shown. A block of weight 500 N is placed at the top of the plane and allowed to slide down. 126 N 15.8 kg 0.158 Find the work done by the 126 N force. The acceleration of gravity is 9.8 m/s. Answer in units of J. 005 (part 2 of 5) 10.0 points Find the magnitude of the work done by the force of friction Answer in units of J. 006 (part 3 of 5) 10.0 points What is the sign of the work done by the frictional force?
50 SON TIN 10 5. MM coston (2697) Hoek tucker (379) Stanos 151 J of work lifting himsel What is Stan's mus? The acceleration of Awin units of key 015 10.0 points The mass of the block is most tally Kom hem of 57.6 ks as she rides the speculator at Woodley Park Station of 1.26 the Washington DC Metro. Karen rode 2.25 stance of 506 m. the longest escalator in 3.9 the world 4.50 The act of gravity is 9.8 m/ How much work did the escalator doon Kifle lus an inclination of 27.07 7.15 Awis units of 8.13 016 (part 1 of 2) 10.0 points The force required to stretcha Hooleslaw 012 (part 2 of 3) 10.0 points peing varies from N to 36.4 N as we stretch Calculate the magnitude of the termale the spring by moving beend 16.5 cm from exerted on the block by the plane its stressed posti. Fil the constant of the spring 1. 120 Answer in its of N/m. 2. IN 200 3. Ñ 240 017 (part 2 of 2) 10.0 points 4. N=360 Fathe work done in stretching the spring 5. IN 200 Amwimmits of 6. IX-160 7. IN 10 018 10.0 points 8. IN 480 N A 2545 kg car moes down a level highway wonder the acceleration of the force. One is 013 (part 3 of 3) 10.0 points 1191 x formand fore expected on the drive Calculate the work done on the block by the de by the road the other is 829 N resistive gravitational force during the slide down the plane in Find the speed of the car after it has moved a distance of mingit starts from 1. W 650 2. 12400 1. 205/ 3. W 1750 4. W 7000 5. W 3750 2.3.6 m/s 6. W850 7. W 2000 3.3.32 m/ 8.W 3000 9. 1600 4.2.9 m/s 014 10.0 points 5.2.22 m/s coton (2007) Hawk-tacker - (379) 6.3.19 m/s 7. 2017 m/ 024 10.0 points A 7.23 kg bling ball moves at 1.45 m/s How fasta 2.22 Ping-Pong lall move so that the two hall have the same kinetic Aswin nits of 8.2.77m/ 9.2.91 m/ 10.2.35 m/