求解

Chrome 檔案 Sylves Scores M Gmail ▸YouTube | 地圖 Pearson eText Purchase Options Study Area User Settings Course Home Ghe binding energy of a two-par X + openvellum.ecollege.com/course.html?courseld=17667848&OpenVellumHMAC=9c8d5dd7baa0c70ec3a75db4e52f2d39#10001 Document Sharing Course Tools 檢視 歷史記錄 書籤 設定檔 分頁 視窗 說明 單 > 翻譯 The position of a 280 g object is given (in meters) by x = 5.1 t³ - 8.0 t²-44 t, where t is in seconds. https://session.masteringphysics.com/myct/itemView?assignment ProblemID=176946106 10月 13 Part A tv Determine the net rate of work done on this object at t = 2.0s. Express your answer using two significant figures. Pt 2.0s= = Submit Part B VAΣO Pt=4.18= = Request Answer Determine the net rate of work done on this object at t = 4.1s. Express your answer using two significant figures. VAE P Pearson ? 1999+ ? W Caright © 2022 Pearson Education Inc. All rights reserved. Terms of Use | Privacy Policy. Permissions Contact Us | W G3 ✩ 10月13日 週四 上午 12:38 I Constants 更新

求解

Chrome 檔案 M Gmail 3 My Courses Course Home Syllabus Scores YouTube Pearson eText Study Area Purchase Options User Settings Course Home X Ghe binding energy of a two-par x + openvellum.ecollege.com/course.html?courseld=17667848&OpenVellumHMAC-9c8d5dd7baa0c70ec3a75db4e52f2d39#10001 Document Sharing Course Tools 單 檢視 歷史記錄 書籤 設定檔 分頁 視窗 說明 地圖 > 翻譯 <L.8 Problem 8.51 Part A W = Submit VAE Provide Feedback How much work would be required to move a satellite of mass m from a circular orbit of radius r₁= 2re about the Earth to another circular orbit of radius r2 = 3rE? (rE is the radius of the Earth.) Express your answer in terms of the variable m and constants rE, ME, and G. Request Answer https://session.masteringphysics.com/myct/itemView?assignment ProblemID=176946298 10月 13 tv ? 10月13日 週四 上午12:37 - 999+ ■ 8 of 10 更新: Constants Next >

想問3-9的a跟c

Problems 3-1. Explain the difference between *(a) random and systematic error. (b) constant and proportional error. *(c) absolute and relative error. (d) mean and median. *3-2. Suggest two sources of systematic error and two sources of random error in measuring the length of a 3-m table with a 1-m metal rule. 3-3. Name three types of systematic errors. *3-4. Describe at least three systematic errors that might occur while weighing a solid on an analytical balance. *3-5. Describe at least three ways in which a systematic error might occur while using a pipet to transfer a known volume of liquid. 3-6. Describe how systematic method errors may be detected. *3-7. What kind of systematic errors are detected by varying the sample size? 3-8. A method of analysis yields masses of gold that are low by 0.4 mg. Calculate the percent relative error caused by this result if the mass of gold in the sample is (a) 500 mg. (b) 250 mg. V(c) 125 mg. (d) 60 mg. 3-9. The method described in Problem 3-8 is to be used for the analysis of ores that assay about 1.2% gold. What minimum sample mass should be taken if the relative érror resulting from a 0.4-mg loss is not to exceed *(a) -0.1%? (b) -0.4%? (c) -0.8%? (d) - 1.1%? 3-10. The color change of a chemical indicator requires an overtitration of 0.03 mL. Calculate the error if the total volume of titrant is percent relative (a) 50.00 mL. (c) 25.0 mL. 3-11. A loss of 0.4 mg of Zn occurs in the course of an percent relative analysis for that element. Calculate the error due to this loss if the mass of Zn in the sample is *(b) 10.0 mL. (d) 30.0 mL. 190 (c) 188 (d) 4.52 x 103 4.63 x 103 4.53 x 10 ³ √6 *(a) 30 mg. (b) 100 mg. *(c) 300 mg. (d) 500 mg. 3-12. Find the mean and median of each of the following sets of data. Determine the deviation from the mean for each data point within the sets, and find the mean devi- Vation for each set. Use a spreadsheet if it is convenient. *(a) 0.0110 0.0105 (b) 24.53 0.0104 24.68 24.81 24.77 39.61 862 (f) 850 MA 3-13. Challenge Problem: Richards and W the molar mass of lithium and colle data. 24.73 Experiment 1 2 3 4 5 6 194 447 X 10 7 448 X 107 4.58 X 10 (a) Find the mean molar t workers. (b) Find the median molar ma (c) Assuming that the cam molar mass of lithium is the absolute ertor and of the mean value demi Willard. (d) Find in the chemical ues for the molar mus since 1910, and ag a table or spreadshera 1817 given in the a Richards and Willd. Com mass versus year to la of lithium has chang Suggest possible abruptly about 18 ant de (e) The incredibly deals Richards and W that major changes will occur. Disc calculation in pat (f) What factors ha since 1910? (g) How would you mass? 6See Chapter 2 of Applications of Microsoft Excel in Analytical Chemistry, 4th ed., for information about statistical 7T. W. Richards and H. H. Willard, J. Am. Chem. Soc., 1910, 32, 4, DOI: 10.1021/ja01919a002. built-in statistical functions. "Answers are provided at the end of the book for questions and problems marked with an asterisk The I of ₂ or inc rce of able vas error c often in individu ate resul data in rtainties. dimensio andom e analysts The result

光學第3題（2.38）請問如何解選項c🙏

3.00 85 09:49 ul. RES Optics Homework 1...748220677e2a.pdf ka KI : 。 Optics Homework 1 1. 2.2* Show that the function $(y, t) = (y – 40) is a solution of the differential wave equation. In what direction does it travel? 2. 2.6 How many wavelengths of a green laser (1 = 532 nm) can fit into a distance equal to the thickness of a human hair (100 um)? How far will the same number of waves extend if they originate from a micro- wave oven (v = 2.45 GHz)? 3. 2.38 Which of the following expressions correspond to traveling waves? For each of those, what is the speed of the wave? The quanti- ties a, b, and c are positive constants. (a) (z, t) = (az – bt)? (b) y(x, t) = (ax + bt + c)2 (c) 4(x, t) = 1/(ar? + b) 4. 2.43 Write an expression for the wave shown in Fig. P.2.43. Find its wavelength, velocity, frequency, and period, Figure P.2.43 A harmonic wave. I=0 40 100 300 500 -20 401 -60 0.66 X 10-15 (nm) 100 300 500 I = 1.33 X 10-15 (nm) o 二

求這兩題詳解～😢😢

- ons is nilot od plass lo gorol arai (s) 29vom Sion los = 9 ) A 170 kg crate hangs from the end of affope of length L = 12.0 m. You push 人 horizontally on the crate with a varying force É to move it distance d = 3.50 m to L the side (Fig. 7-20). (a) What is the mag- nitude of † when the crate is in this final position? During the crate's displace-lid 250 bisw ment, what are (b) the total work done 32 on it, (c) the work done by the grav- 16 Hoold itational force on the crate, and (d) the kd work done by the pull on the crate from the rope? (e) Knowing that the crate is Figure 7-20 Problem 9. motionless before and after its displace- ment, use the answers to (b), (c), and (d) to find the work force + does on the crate. (f) Why is the work of your force not . ( equal to the product of the horizontal displacement and the answer to (a)? - -- your

有人知道這怎麼算嗎 ？ 畫黑線的那裡 （Cos25度）

The solution requires that we determine the component of the f because the component of the force that was pushing down on Fparallel (Force) (cos 25°) = (125 N)(0.906) = 113 N W = Fparalleld = (113 N)(56 m) = 630 J Getting a piano into a truck isn't easy, so we often use a ramp to the distance we have to apply the force is greater. So in a way, work done remains the same. Play around with the Ramp and Pi

請問有人知道這三題的算法跟答案嗎(´･ω･`)

線上盛一遊戲橘子 < > a physexp.thu.edu.tw/~APNC/NP/ 07 古 課程平台練習 科技與物理公告 講義 測驗成績 FB 連結至基礎應用數學 1.古典力學 NP-003 login P01 P02 P03 P04 POS P06 P07 P08 得分與答題次數 2.圓週運動與 文學 3.熱力學 Problem7(填充題) Three moles of helium are initially at 20 °C and a pressure of 1 atm(=1.01 x 10 Pa). (a)Calculate the initial volumne of the helium gas. What is the work done by the gas if the volume is doubled (b) at constant pressure, or (c) isothermally? 提示:可將氮氣視為理想氣體,等溫過程所做的功的公式為:W=nRT Ind)。 (03小題) 一熱力學定律(25) 「溫度(9) 下與美容量(24) ANP-L05 理想氣體與功(2 氣體運動論文 ANP-L06 ONP-003 4章皇 (a)the initial volume= 分數=2 可嘗試次數= 5 m3 m 相對誤差=0.05 目前剩餘 5次,可繼續嘗試 :30 5.學 6.波動與光 近代物理 更新剩餘次数 B. 近代科技1 9近代科技 機器學習 (b)work done at constant pressure , W= 分數= 2 可嘗試次數=5 相對誤差-0.05 ] 目前剩餘 5次,可繼續嘗試 10.近代科技 量子電腦 :31 VPYTHON https:/physexp thu edu tw/LAP 8/NP-Q03-T-07 php 重設

求解～答案都是E

例6:絕熱可逆系統 (1) 1.0 mole monoatomic ideal gas at300K and 10.0 atm is expanded adiabatically and reversibly to 1.0 atm. Calculate the final volume (in D. &=0 【107 台綜大(B) (A)$22GB) 1852 。(C) 6 。(DX2芭 (E) 11.2 (2) What's the work (in R) in (1 ? 【107 台綜大(B) (A) -210 (B) -270 (C) -360 (D) -320 (E) -440

求第二題、第七題詳解

題1 題3 題4 LT 盒汪坊 一汪江 題5 題6 Homework 3 1. 電阻值為 Ri=# 3G, R2= 60和 Ra=5Q的電阻器連接成如下圖 無呢系列的電阻器 ; 從X和 Y 兩端連接的等效電阻值為何? 2. 下圖電路中的伏特計量到的電壓為 12V ; (a)求電池的電動勢 &為何? (b)當開關 S 關閉時,安培計上的電流為何? 3. 一混合動力的新車質量為 1200 公斤, 這輛車使用 360 伏特 電池驅動電動馬達產生的最大電流為 200 安培 。當汽車以 22 公里/小時在一斜坡等速爬升 並不使用汽油馬) 達來協助 gp 找到最大的坡度 ? 4. 如圖 ,一個錐狀導體長度為 L ,左右兩側的半徑分別為3和 6 (且 2多,它的電阻率為p,將它的左右兩側分別接在電池兩 端,求此導體的電阻為何? 5.一個導體球殼內外徑分別為 3和 5,它的電阻率為p,將它的 內外徑分別接在電池兩端,求此球殼的電阻為何? 6.一平行板電容器具有面積 10 cm?的板,由 0.1mm 的玻璃絕 緣層隔開,電阻率p=1.2 x 1070O.m,介電常數k =5.6。(a) 如何以電路圖中表示這種漏電的電容 ? (b) 求出該電容器的 時間常數,該時間常數只取決於絕緣材料的特性。 7.如圖 ,一無電荷的電容 和 和一電阻 8&=5x10 人 ge=5V 串聯連接在一起。求(a)電路的時間常數? (b)電容的 電量? (o) 的還大生 (d)電 量的時間函數? (e)電流的 時間函數? A bm G@ 六 R / 1 AS Y防 自 題1 題2 題4

求第五題詳解

Homework 2 . 一個電四偶極為一個帶 2Q 電量的電荷位於原點 ,與另外兩個帶-Q 電量的電荷分別在 x=+a 的位置所組成 ;P 點的座標為(x,0) ,當 x>>a 時;求系統在 P 點的(a)電位 V(b)電場E 為何? . 一半徑為 R 的球的電場為計- Eo(r/R)?f,其中 Eo是常數,r是到球心 的距離。求出從球體表面到球心的位能差。 . 一線電荷在x軸上 從-L / 2延伸到L/2 峽電荷密度為2=X0(x/L)?, 其中%0是常數。在 x 軸上求出 x>L / 2的位能的表達式。檢查表達 式在x>>L/ 2是否符合期待的結果。 . 一半徑為 8的帶電圓盤,它的電荷密度0=Cr“,此處r為電荷盤中 心的距離,C 為一常數 ;如圖,在x軸上的一點P ;試求(a) 在點 P 的電位為何? (b) 應用 Ex= ~-ov/ox,求在點P 的電場? - 兩個球半徑分別為 3和 5,組成一個電容器,兩球的距離為 ?遠大 於兩球的半徑 ; 證明電容器的電容值 C=4mtgo/(1/a+1/全2/9? . 電容值為 Ci=3hF, C2=2hF, 和 C3=6HF 的電容器連接成如下圖無窮 系列的電容器;從X和 Y 兩端連接的等效電容值為何? . 一個面積為 A 的平行板電容器,兩板間的距離為 x;)兩平行板所儲 存的電量分別為+Q 和-Q 。當電池被移除後 ,兩電板之間的作用力為 AU了 (Hint Fe = -gU/odx (= 1/2 @/O0 題1 題3 題4 "一一選