# PH105 007 Exam 2 VERSION A Name - University Of Alabama

9m ago
14 Views
839.76 KB
7 Pages
Last View : 28d ago
Transcription

PH105-007 Exam 2VERSION ANameMULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.1) A 1.0-kg block and a 2.0-kg block are pressed together on a horizontal frictionless surface with acompressed very light spring between them. They are not attached to the spring. After they arereleased and have both moved free of the springA) the magnitude of the momentum of the heavier block will be greater than the magnitudeof the momentum of the lighter block.B) both blocks will both have the same amount of kinetic energy.C) the lighter block will have more kinetic energy than the heavier block.D) the heavier block will have more kinetic energy than the lighter block.E) both blocks will have equal speeds.1)2) A 2.3 -kg object traveling at 6.1 m/s collides head-on with a 3.5 -kg object traveling in theopposite direction at 4.8 m/s. If the collision is perfectly elastic, what is the final speed of the2.3 -kg object?A) 4.3 m/sB) 7.1 m/sC) 6.6 m/sD) 0.48 m/sE) 3.8 m/s2)3) A 620-g object traveling at 2.1 m/s collides head-on with a 320-g object traveling in theopposite direction at 3.8 m/s. If the collision is perfectly elastic, what is the change in the kineticenergy of the 620 -g object?A) It gains 0.69 J.B) It loses 0.47 J.C) It loses 0.23 J.D) It loses 1.4 J.E) It doesn't lose any kinetic energy because the collision is elastic.3)4) In the figure, determine the character of the collision. The masses of the blocks, and the velocitiesbefore and after are given. The collision is4)A)B)C)D)E)completely inelastic.partially inelastic.perfectly elastic.characterized by an increase in kinetic energy.not possible because momentum is not conserved.1

VERSION A5) A series of weights connected by very light cords are given an upward acceleration of 4.00 m/s 2by a pull P, as shown in the figure. A, B, and C are the tensions in the connecting cords. The pullP is closest toA) 200 N.B) 50 N.C) 690 N.D) 290 N.5)E) 490 N.6) On a frictionless horizontal table, two blocks (A of mass 2.00 kg and B of mass 3.00 kg) arepressed together against an ideal massless spring that stores 75.0 J of elastic potential energy.The blocks are not attached to the spring and are free to move free of it once they are releasedfrom rest. The maximum speed achieved by each block is closest to:A) 4.47 m/s (A), 6.71 m/s (B)B) 5.00 m/s (A), 6.12 m/s (B)C) 5.48 m/s for bothD) 6.71 m/s (A), 4.47 m/s (B)E) 6.12 m/s (A), 5.00 m/s (B)6)7) A 2.00 -kg object traveling east at 20.0 m/s collides with a 3.00 -kg object traveling west at 10.0m/s. After the collision, the 2.00 -kg object has a velocity 5.00 m/s to the west. How muchkinetic energy was lost during the collision?A) 91.7 JB) 175 JC) 458 JD) 516 JE) 0.000 J7)2

VERSION A8) A car of mass 1689 kg collides head-on with a parked truck of mass 2000 kg. Spring mountedbumpers ensure that the collision is essentially elastic. If the velocity of the truck is 17 km/h (inthe same direction as the car's initial velocity) after the collision, what was the initial speed ofthe car?A) 10 km/hB) 19 km/hC) 38 km/hD) 29 km/h9) How much energy is needed to change the speed of a 1600 kg sport utility vehicle from 15.0 m/sto 40.0 m/s?A) 1.10 MJB) 10.0 kJC) 40.0 kJD) 0.960 MJE) 20.0 kJ10) A 7.0 -kg object is acted on by two forces. One of the forces is 10.0 N acting toward the east.Which of the following forces is the other force if the acceleration of the object is 1.0 m/s 28)9)10)toward the east?A) 6.0 N eastB) 9.0 N westC) 12 N eastD) 3.0 N westE) 7.0 N west11) An 1100 -kg car traveling at 27.0 m/s starts to slow down and comes to a complete stop in 578m. What is the magnitude of the average braking force acting on the car?A) 410 NB) 690 NC) 550 ND) 340 N11)12) A baseball is thrown vertically upward and feels no air resistance. As it is risingA) both its momentum and its kinetic energy are conserved.B) its gravitational potential energy is not conserved, buts its momentum is conserved.C) its momentum is not conserved, but its mechanical energy is conserved.D) its kinetic energy is conserved, but its momentum is not conserved.E) both its momentum and its mechanical energy are conserved.12)13) A fish weighing 16 N is weighed using two spring scales, each of negligible weight, as shown inthe figure. What will be the readings of the scales?13)A)B)C)D)E)Each scale will read 16 N.The bottom scale will read 16 N, and the top scale will read zero.The top scale will read 16 N, and the bottom scale will read zero.The scales will have different readings, but the sum of the two readings will be 16 N.Each scale will read 8 N.3

VERSION A14) Consider the motion of a 1.00 -kg particle that moves with potential energy given byU(x) (-2.00 J m)/x (4.00 J m2)/x2. Suppose the particle is moving with a speed of 3.00 m/s14)when it is located at x 1.00 m. What is the speed of the object when it is located at x 5.00 m?A) 3.67 m/sB) 4.68 m/sC) 3.00 m/sD) 2.13 m/s15) You swing a bat and hit a heavy box with a force of 1500 N. The force the box exerts on the bat isA) greater than 1500 N if the box moves.B) less than 1500 N if the box moves.C) exactly 1500 N whether or not the box moves.D) greater than 1500 N if the bat bounces back.E) exactly 1500 N only if the box does not move.15)16) A 615 N student standing on a scale in an elevator notices that the scale reads 645 N. From thisinformation, the student knows that the elevator must be movingA) downward.B) upward.C) You cannot tell if it is moving upward or downward.16)17) The figure shows a 100-kg block being released from rest from a height of 1.0 m. It then takes it0.90 s to reach the floor. What is the mass m of the other block? The pulley has no appreciablemass or friction.17)A) 54 kgB) 42 kgC) 60 kg4D) 48 kg

VERSION A18) Two objects, each of weight W, hang vertically by spring scales as shown in the figure. Thepulleys and the strings attached to the objects have negligible weight, and there is noappreciable friction in the pulleys. The reading in each scale is18)A) more than 2W.B) more than W, but not quite twice as much.C) W.D) less than W.E) 2W.19) A 60.0 -kg person rides in an elevator while standing on a scale. The scale reads 400 N. Theacceleration of the elevator is closest toA) 3.13 m/s 2 downward.19)B) 6.67 m/s 2 downward.C) 9.80 m/s 2 downward.D) zero.E) 6.67 m/s 2 upward.20) A spring stretches by 21.0 cm when a 135 N object is attached. What is the weight of a fish thatwould stretch the spring by 31.0 cm?A) 279 NB) 199 NC) 145 ND) 91.0 N520)

Formula sheet p 0g 9.81 m/s2G 6.67 1011NA 6.022 1023 things/mol23kB 1.38065 104 3 r3J·K1N m2 /kg21 L 103 8.6173 10A 4 r2pb b2 4acax2 bx2 c 0 ) x 2a11sin sin 2 sin ( ) cos ( )2211cos cos 2 cos ( ) cos ( )22c2 a2 b2 2ab cos absphereV dsin ax a cos axdxZ1cos ax dx sin axadcos ax a sin axdxZ1sin ax dx cos axa1 2cos 1 small 2sin v limt!0ax limt!0tfvx Zax (t) dtx tivx (t) dttix(t) xi vx,i t 1ax t 22vx (t) vx,i ax t22vx,f vx,i 2ax xax,ramp g sin U G mg xEmech K UE K p m vm35eV · K1mu J isolated systemv2f vs,xmsvu,x p m1 m22m2vi1 v2im1 m2m1 m2 2m1m2 m1 v1i v2im1 m2m1 m2v1f 1K mv 22 v12 v2 v1 a P1D elastic J Ztf Xrelative velocityP ext XFFp d acm Fmmdt X J Ft constant force F(t)dttime-varying forceti 12 F 21FFgrav mgFspring Isolated systems: p, E K U conserved.PStatic equilibrium:F 0 about any axis.Elastic collision: KE and p are both conserved.Inelastic collision: only p is conserved, not KE.Derived unitnewtonjoulewatta1xm2 a2xm11K mv 22U 0 non-dissipative, closed1D elasticisolated systemE 0 rd r tdt vxdvxd dxd2 x 2tdtdt dtdtZtfisolated system pf piPower61010 310 nt toNJWkg·m/s2kg·m2 /s2 N·mJ/s m2 ·kg/s3AbbreviationµmckMk x

C) its momentum is not conserved, but its mechanical energy is conserved. D) its kinetic energy is conserved, but its momentum is not conserved. E) both its momentum and its mechanical energy are conserved. 12) 13) A ﬁsh weighing 16 N is weighed using two spring scales, each of negligible weight, as shown in the ﬁgure.

Related Documents:

Other protozoal intestinal diseases (007) Balantidiasis (007.0) Giardiasis (007.1) Coccidiosis (007.2) Intestinal trichomoniasis (007.3) Other protozoal intestinal diseases (007.8) Unspecified (007.9) Intestinal infections due to other organisms (008) Escherichia coli (008.0) Arizona (008.1) Aerobacter aerogenes (008.2)

Other protozoal intestinal diseases (007) Balantidiasis (007.0) Giardiasis (007.1) Coccidiosis (007.2) Intestinal trichomoniasis (007.3) Other protozoal intestinal diseases (007.8) Unspecified (007.9) Intestinal infections due to other organisms (008) Escherichia coli (008.0) Arizona (008.1) Aerobacter aerogenes (008.2)

Past exam papers from June 2019 GRADE 8 1. Afrikaans P2 Exam and Memo 2. Afrikaans P3 Exam 3. Creative Arts - Drama Exam 4. Creative Arts - Visual Arts Exam 5. English P1 Exam 6. English P3 Exam 7. EMS P1 Exam and Memo 8. EMS P2 Exam and Memo 9. Life Orientation Exam 10. Math P1 Exam 11. Social Science P1 Exam and Memo 12.

GRADE 9 1. Afrikaans P2 Exam and Memo 2. Afrikaans P3 Exam 3. Creative Arts: Practical 4. Creative Arts: Theory 5. English P1 Exam 6. English P2 Exam 7. English P3 Exam 8. Geography Exam 9. Life Orientation Exam 10. MathP1 Exam 11. Math P2 Exam 12. Physical Science: Natural Science Exam 13. Social Science: History 14. Technology Theory Exam

Final Exam Answers just a click away ECO 372 Final Exam ECO 561 Final Exam FIN 571 Final Exam FIN 571 Connect Problems FIN 575 Final Exam LAW 421 Final Exam ACC 291 Final Exam . LDR 531 Final Exam MKT 571 Final Exam QNT 561 Final Exam OPS 571

Mikuni VM18 Parts Float Height 20-22mm No. Order No. Mikuni Part No. Description 1. 007-685 VM18/67 Rubber Cap, Throttle Cable 2. 002-062 M21/14 Cable Adjuster 3. 002-065 B30/247 Nut, Cable Adjuster 4. 007-273 VM16/40 Top, Mixing Chamber 5. 007-274 VM18/170 Spring, Throttle Valve 6. 007-686 VM18H1/38 Clip, Jet Needle Retaining 7. 002-083 VM20 .

86398830-E 07/21/17 Spare Parts List (1.007-056.0, 1.007-057.0) Compass 2 From Serial Number (Ref No. 1*) * See Serial Number page or call manufacturer.

The following document (MCS 007 Issue 6.0) is a major update to MCS 007 Issue 5.0. It is available for reference from the date of publication (26/11/2018). Manufacturers or importers of microgeneration systems who have certificated a microgeneration product in accordance with MCS 007 may commence working in accordance with this update

N10-007 - CompTIA Network pg. 2 Introduction to N10-007 Exam on CompTIA Network Use this quick start guide to collect all the information about CompTIA Network (N10-007) Certification exam. This study guide provides a list of objectives and resources that will help you prepare for items on the

and review the questions in the CFE Exam Prep Course until you receive your CFE Exam activation key and are ready to take the exam. You may continue to study with the CFE Exam Prep Course in between taking sections of the CFE Exam. If you request your exam activation key before completing the CFE Exam

FINAL EXAM: The final exam will cover chapter 11, 13 and 15. There will be no make-up exam for the final exam. The final exam will count 100 points. The final exam will be 40 questions. The format will be multiple-choice. Only the materials covered in the lectures will be on the exam and you will have designated class time to finish the exam.

Cisco Next-Level Career Certification - CCNP DevNet-CCNP DevNet Core-Exam 350-901 (DEVASC)-One CCNP DevNet Concentration-Exam from:-Exam 300-435 (ENAUI)-Exam 300-535 (SPAUI)-Exam 300-635 (DCAUI)-Exam 300-735 (SAUI)-Exam 300-835 (CLAUI)-Exam 300

Note: If the score earned on the final exam is higher than the lowest unit exam score, then the lowest unit exam score will be replaced with the score earned on the final exam. If a student misses an exam, then that exam will be counted as the lowest exam score. Only one exam score can be replace

KENWOOD TS-940 PAGE Version 2: 4 April 2005, Version 3: 25 April 2005, Version 4: 27 May 2005, Version 5: 31May 2005, Version 6: 10 June 2005: Version 7: 16 June 2005: Version 8: 25 July 2005Version 9: 30 July 2005. Version 10: 4 August 2005, Version 11: 13 Sep 2005, Version 12: 18 October 2005, Version 13: 23 October 2005,

Exam Viewer - ENetwork Final Exam - CCNA Exploration: Network Fundamentals (Version 4.0) Below you will find the assessment items as presented on the exam as well as the scoring rules associated with the item. Use of the exam information in the Exam Viewer is subject to the terms of the Academy Connection Website

220-902 Exam Dumps 220-902 Exam Questions 220-902 PDF Dumps 220-902 VCE Dumps Back to the Source of this PDF and Get More Free Braindumps -- www.comptiadump.com CompTIA A Certification 220-902 Exam Vendor: CompTIA Exam Code: 220-902 Exam Name: CompTIA A (220-902) Get Complete Version Exam 220-902 Dumps with VCE and PDF Here

CCIE Security Written Exam (350-018) version 4.0 Exam Description: The Cisco CCIE Security Written Exam (350 -018) version 4.0 is a 2 hour test with 90–110 questions. This exam tests the skills and competencies of security professionals in terms of describing, implementing, deploying, configuring, maintaining, and troubleshooting Cisco network

Version 1.0 (400-051) Exam Description: The Cisco CCIE Collaboration Written Exam (400 -051) version 1.0 has 90 110 questions and is 2 hours in duration. This exam validates that candidates have the skills to plan, design, implement, operate, and troubleshoot enterprise collaboration and communication networks. The exam

0 Test Prep 8 Buy Exam Pre-admission Exam for Examicy added to your cart. E·PAX Pre-admission Exam for Examity Quantity Type: Exam Exams: Pre-Adm ission Exam Verbal School Products: PAX Price: 80.00 E-NRCB Nursing Care of Childbearing Family E-PAXACC Pre-admission Exam ACC for Examity Quantity MMMM Type: Exam Exams: Pre-Adm iss on Ex am Verb l

EMC Overview 43 Immunity Issues Can Exist Due To The Following Most of today’s electrical and electronic systems rely on active devices such as microprocessors and digital logic for: –Control of system functions. –User convenience / features. –Legislated system requirements (such as mobile telephone location reporting). With today’s vast networks for data communication there .