第七題和第九題求解謝謝～～ （算不出來😅，然後第9題的小d是指哪一段😅😅） 答案 7.(a)3cm／(b)4.09×10^-24N 9.(a)1.44cm／ (b)less than

FIGURE 21.13 Problems 5, 6, and 7. 7M In Fig. 21.13, particles 1 and 2 are fixed in place on an x axis, at a separation of L = 12.0 cm. Their charges are q₁ = +e and q2=-27e. Particle 3 with charge q3=+4e is to be placed on the line between particles 1 and 2, so that they produce a net electrostatic force F3, net on it. (a) At what coordinate should particle 3 be placed to minimize the magnitude of that force? (b) What is that minimum magnitude? y 1 L 2 X FIGURE 21.13 Problems 5, 6, and 7. = 9H Figure 21.14 shows an arrangement of four charged par- ticles, with angle 0-30.0° and distance d=1.50 cm. Particle 2 has charge q: +8.00 x 10-19 C; particles 3 and 4 have charges 93-94 -1.60 x 10-19 C. (a) What is distance D between the origin and particle 2 if the net electrostatic force on particle 1 due to the other particles is zero? (b) If particles 3 and 4 were moved closer to the x axis but maintained their symmetry about that axis, would the required value of D be greater than, less than, or the same as in part (a)? sbul & to sigillum in bon 3 mi 5 w 081=0 Im haq to teds at an gnibnoq1109 noi d D 2 4 FIGURE 21.14 Problem 9. naviga Tinoms sized -x Sted) bubai) ab ziedw Som

看不懂31。謝謝你的幫忙🥺，我要更認真讀英文🤣🤣🤣🤣

Questions 30-34 are based on the information provided in the following web page and en 7+14 Qwww.icmss.org.tw/conference BO The Fifth International Conference on Management and Social Sciences (ICMSS) Call for Papers the fields of Communication & Society, Politics & Law, Banking & Finance, and The ICMSS, now in its fifth year, is a platform for scholars to discuss research in Marketing & Management. email account: papers@icmss.org.tw. Only upon payment of the registration fee colleges or research institutes are invited to submit original papers to the following The Fifth ICMSS will take place in Taipei, Taiwan. Researchers at universities, All submissions will be peer reviewed by three competent referees. Authors of (US$110) will submissions be reviewed for inclusion at this year's conference. accepted papers may be required to amend their work as advised by the review panel. Revised papers must be submitted by the deadline below. Important dates Deadline for paper submission: July 17/1 根据建議. 修改後,再寄一次 Notification of acceptance: August 20 8/20 是否被接受的通知 Deadline for submission of revised papers: September 20 119/20 Conference dates: November 10-12 Notes 11/10-12 For format guidelines, please click here. Papers that do not conform to the requirements will be returned for modification. f you have questions, please write to Judy Hall at jh@icmss.org.tw. R From: To: R R R R Dennis Burton <dburton@univmail.edu> Judy Hall <jh@icmss.org.tw> Subject: Questions about the 5th ICMSS Dear Ms. Hall, Thank you for your prompt response. I have paid the registration fee as per your instructions. However, in my previous email, I also asked whether submission of multiple articles is accepted. I hope you can clarify this as soon as possible. Both articles I plan to submit are co-authored with my colleague Professor R. Jones. Although the papers both concern the role of central banks in managing the money supply, they are written from different perspectives. I believe that they will be of great interest to the target audience of this conference. In addition, there still appears to be a problem with the link on the website. I have tried the web browser you suggested, but I still received a "Cannot find expecte page" notification. Thank you for your assistance. I look forward to hearing from you. Best regards, Dennis Burton amend (v.) 11 the law · panel In.) review panel

請問第40題求算法

《空氣汙染防制法》已在立法院三讀通過,環保署2018年6月26日正式宣布,將分階段實施10年以上老 舊汽機車加嚴標準以及管制其進入劃設空品區,首波將在2020年1月起實施,將針對二行程機車和一、二期 柴油車開限制。 環保署規劃,機車分兩階段加嚴排放標準,第一階段從2020年1月1日起,16年以上的機車,必須符 合一氧化碳(CO)3.5%、碳氫化合物(HC) 2000ppm 第四期的排放標準;第二階段,2022年起,出廠15年 以上的機車,需符合CO3.5%、HC 1600ppm 第五期排放標準,推估加嚴標準後,約有491萬台機車受到影 響。 漂浮在空氣中類似灰塵的粒狀物稱為懸浮微粒(particulate matter,PM),PM 粒徑大小有別,小於或等於 2.5微米(um)的粒子,就稱為PM2.5,通稱細懸浮微粒,單位以微克/立方公尺(ug/m²)表示之,它的直 徑還不到人的頭髮絲粗細的1/28,非常微細可穿透肺部氣泡,並直接進入血管中隨著血液循環全身,故對人 體及生態所造成之影響是不容忽視的。 節錄自行政院環境保護署(http://air.epa.gov.tw/Public/suspended_particles.aspx) 39.( )已知 ppm 是濃度的表示方式,即是毫克(mg)/公升,從文中可以判斷環保署規劃2022年起,每 150c.c. 的機車廢氣中碳氫化合物不能超過多少公克? (A)2000 (B)1600 (C)1.600 (D)0.240。 40.0 1)若空氣中懸浮微粒的平均密度為4.0g/cm²,則摩托車通勤族在1cm²的空氣中約吸入多少體積的細懸浮 微粒? (A)8.0×10-6cm² (B)9.6×10-cm² (C)5.5×10-5cm² (D)1.1×10-4cm²。 va

請問40題怎麼計算

《空氣汙染防制法》已在立法院三讀通過,環保署2018年6月26日正式宣布,將分階段實施10年以上老 舊汽機車加嚴標準以及管制其進入劃設空品區,首波將在2020年1月起實施,將針對二行程機車和一、二期 柴油車開限制。 環保署規劃,機車分兩階段加嚴排放標準,第一階段從2020年1月1日起,16年以上的機車,必須符 合一氧化碳(CO)3.5%、碳氫化合物(HC) 2000ppm 第四期的排放標準;第二階段,2022年起,出廠15年 以上的機車,需符合CO3.5%、HC 1600ppm 第五期排放標準,推估加嚴標準後,約有491萬台機車受到影 。 漂浮在空氣中類似灰塵的粒狀物稱為懸浮微粒(particulate matter,PM),PM 粒徑大小有別,小於或等於 2.5微米(um)的粒子,就稱為PM2.5,通稱細懸浮微粒,單位以微克/立方公尺(ug/m²)表示之,它的直 徑還不到人的頭髮絲粗細的1/28,非常微細可穿透肺部氣泡,並直接進入血管中隨著血液循環全身,故對人 體及生態所造成之影響是不容忽視的。 節錄自行政院環境保護署(http://air.epa.gov.tw/Public/suspended_particles.aspx) 39.( 1)已知ppm是濃度的表示方式,即是毫克(mg)/公升,從文中可以判斷環保署規劃2022年起,每150c.c. 的機車廢氣中碳氫化合物不能超過多少公克? (A)2000 (B)1600 (C)1.600 (D)0.240。 40.( / )若空氣中懸浮微粒的平均密度為4.0 g/cm²,則摩托車通勤族在 Icm²的空氣中約吸入多少體積的細懸浮 微粒? (A)8.0×10-6cm²(B)9.6×10-6cm² (C)5.5×10-5cm² (D)1.1×10-4cm3。 ILOD ma 49, 0.0

求解🙏謝謝～

34) A patient receives 4.2 × 103 mrads of iodine-131, which emits ß-particles. If the factor that adjusts for biological damage is 1 for beta particles, how many rems did the patient receive? A) 4.0 B) 0.40 C) 0.30 D) 2.0 E) 40. Answer: A Objective: 5.3 Global Outcomes: GO4

求救

Chrome 檔案 M Gmail Course Home Syllabus Scores YouTube Pearson eText Study Area Purchase Options Course Home User Settings Document Sharing Course Tools 單 openvellum.ecollege.com/course.html?courseld=17667848&OpenVellumHMAC=9c8d5dd7baa0c70ec3a75db4e52f2d39# 10001 檢視 歷史記錄 書籤 設定檔 分頁 視窗 說明 地圖 > 翻譯 X Ghe binding energy of a two-par x + <L.8 Problem 8.75 The binding energy of a two-particle system is defined as the energy required to separate the two particles from their state of lowest energy to r= ∞o. The potential energy of the two atoms in a diatomic (two-atom) molecule can be written b U(r) = − 6 +12, where r is the distance between the two atoms and a and b are positive constants. 10月 13 Part A Determine the binding energy for this molecule. Express your answer in terms of the variables a and b. Ebind= Submit Provide Feedback VAEO tv JA xa Xb b √x x x X Incorrect; Try Again; 3 attempts remaining Previous Answers Request Answer 1999+ C |X| ? X.10n 10月13日 週四 上午12:33 I 9 of 10 Constants 更新 Next >

請問第79題🙏

AX represents the highest peak of human accomplishme B 78. Leonardo da Vinci, (A) who has been called a masterpiece of nature (B) he has been called masterpiece of nature (C) which has been called a natural masterpiece (D) that he was called a masterpiece of nature 79. Meteorites, (A) most of which are small particles, hit (B) most of the small particles are hit (C) the small particles, mostly hit (D) hit the small particles, of 80. _________, which certainly look wise, are not thought to be among the most intellig C animals. the earth at a rate of 730,000 tons a year. (A) They are owls (B) Owls are 81. The Brooklyn Bridge was built in the 1880's (A) growing industrialization triggered (B) when growing industrialization triggered (C) triggering a growth in industrialization of (C) Owls (D) There are ow a transportation boom.

這些選項在講啥😅 答案B

2. Which is not correct to apply Newton's 3rd law? (A) All measurements should be made in an inertial reference frame; (B) The interacting particles can not be accelerating; (C) No virtual force (e.g., the Coriolis force) is involved; (D) All; (E) None.

麻煩幫我翻譯A選項的意思

1. Which of the following articles is likely to be in the first Lonely Planet book? (A) Incredible Ruins in Asia You Have Never Heard of. (B) Top 10 Best Value Destinations in Greece. (C) Top Tips to Make your African Safari More Affordable. (D) The 10 Most Luxurious Bars and Clubs in Bali. 3865

18題，感謝

10. [2D and 3D motion] Show that the potential energy U(r) ofFa particle of nass jat aa distance r(> 員 from a planet of Inass 4 and radins 戶話 11. [The cross product] Caleulate the cross product A x B, assuming that A and B both lie in the x-y plane and have the respective nonzero components 4,, 4, and 妖,, 且, 12. [Angular momentum] Show that 主r, the instantaneous position ofa particle of mass mu with respect to a certain origin O, is parallel to its acceleration dv/吧, then the time Tate of change of the angular Inoimentum L with respect to the given origin vanishes 13. [Theorem 了 Show that the torque-angular momentum formnla _箇 7二 is also valid for a two-particle system 放 the origin lies at the center of mass 14. [Theorem IIH] Two particles of respective Inass ml and 2 are connected to the ends of amassless rod and Inove in the uniform gravitational field g ofthe earth. (a) What is the acceleration of their center of nass Telative to a Newtonian origin O? (b) Show that the angular Inomentum of the two particles about their center of nass 生 aconstant of the motion. 15. [Moments of inertia] Calculate the moment of inertia ofathin, uniform rod of mass m and length / about an axis perpendicular to the rod and at a distance q from one end. 16. [Rotation about a fixed axis] Consider the rotating cylinder in Figure, and suppose that A7 sg, Fo 三 0.6 Nt, and @ 二 0.2m, Calculate (a) The torque 7 acting on the cylinder (b) Ti ngular aceeleration q of the cylinder 17. [Work and kinet: instant Totat eenergy] A 40-kg homogeneous sphere of radius 10 cm is at acertain about ashaft through its center at 600 rpm. Assuining that a constant fric itude ets so that the sphere comes to rest in 10 seconds, Calculate th tional torque ofthis torque. 18. [The physical pendl end and allowed to oscillate freely in a horizontal plane (see Figure) m] A uniform Tod of Inass ru and length / is suspended at one (a) What is the period of this physic lpendulum for small amplitudes? (b) Ithe velocity u0 of the mass ce Hulum is initially released at rest in a horizontal position。what is the er at a subsequent instant when the Tod is vertical? (ec) Calculate the vertical and the horizontal components of the force on the rod at the point of suspensic 19 and rotations] Analyze the motion of a homogeneous sphere of mass 和7 and Tadius dq, which rolls without slipping down a fixed inclined plane of angle # 20. of angular momentum] A Inan has ainoment of inertia 五 about the = axis. He is originally at Test and standing on asinall platform which can turn freely. Ifhe is handed a wheel which is rotating at and has anoinent of inertia 了about its spinning axis, determine his angular velocity 放 (a) he holds the wheel upright, (b) turns the wheel out 9 二 90?, and (c) turns the wheel downward, 9 二 180?. Neglect the effect of holding the wheel a distance d away from the z axis