大學物理 功

課堂練習 1.如果你在超級市場用75N的力水平推一部購物車在走道上移 動了12m,你做了多少功? 2.一部起重機將一支重650kg的横垂直舉起23m高,接著起 重機轉向東邊移動了18m,求起重機所做的功。忽略摩擦力並 假設起重機以固定的速率移動。 3.如圖所示,一人以大小為30牛頓的力拉貨量5kg的物體,而 使物體在無摩擦力之水平面上移動2m,請問此人做多少功? 2021 Pearson Education Ltd. All Rights Reserved

普物的熱力學章節，能用不是全屬地科的內容解釋嗎🥲感恩

4. 為何鯨魚魚群冬天習慣回到北方產小鯨魚,而夏天則往南方走,請以熱力學 說明之? Why whales are used to returning to the north to produce small whales in winter, but go south in summer, please explain with thermodynamics?

求解🙏

The two masses shown in Figure are connected by three massless and frictionless pulleys. What is the magnitude of ai / a2 ? a 411 2 a2

這題有點看不懂

ch3-2DMotion pptx - PowerPoint 投影片 基於业山保 信 Acrobat 20 As = = == = BTU SA ===== 位木匠在8.8m高的屋頂上以11m/s的速率在水平方向丢出一 - H (a)木瓦落地所需的時間為何? (b)木瓦在水平方向的移動距離有多遠Joy = 0 Vo = Uox toy ) Vo = 31 m/s > 大 Jay Vox=31 m/ allow ox= Vent + karte of exarang (4-0) = Vo A (T 60.589 =

求解法 謝謝 （普通物理）

1. Consider a particle moving with the acceleration vs. time graph as in Fig. 1. a, and to are constants with unit in m/s2 and s. Assume the particle is at rest and at origin (L) at t = 0. (a) Find the velocity v(t) for each interval (i.e. 0<t< to, to <t< 2to, 2t, <t (b) Find the displacement x(t) of the particle for each interval. (c) What are the velocity and displacement of the particle at t = 3t0? Fig. 1 an 2ao w ao to to 8:03 来搜寻 co 33°C D

請問這題怎麼解 要用什麼公式？

In 2014 the Philae spacecraft became the first artifact to land on a comet. Unfortunately, Philae bounced off the comet's surface and ultimately landed in a nonideal location. After its first contact, Philae was moving upward at 38 cm/s, and it rose to a maximum height of about 1 km. Estimate the gravitational acceleration of the comet, assuming it's constant (not a very good assumption in this case).

我不太會算.. 可以幫幫我嗎 感謝感謝🙏🙏 #物理

9/28課堂練習 (1)將4.2×10 m/s除以0.57 ms,並以m/s2為單位表示 (2)把3.63105 m和2.13103 km相加 (3)下列數值(a)以科學符號(scientific notation)表示 (b)有效數字(significant figure)的數 0.0008, 3.14 x 107, 2.998 x 10-9, 550 x 106, 0.014 x 109

請問有人知道這兩題的算法與答案嗎(´･ω･`)

運動與 力學 Problem6(填充題) A steel ball of mass mi = 80 g has an initial temperature Ti = 200 °C. It is immersed in m2 = 250 g of water in a copper cup of mass m3 = 100 g. The initial temperature of the water and cup is T2 = 20 °C Find the final temperature when the system reaches thermal equilibrium. (01小題) . ) SPECIFIC HEATS (20 °C AND 1 ATM) c (J/kg.K) 力學定律(25) 变(9) 與熱容量(24) P-LOS 想氣體與功(2 體運動論與內 TP-L06 NP-003 Aluminum Copper Gold Steel/Iron Lead Mercury Water Ice (-10 °C) C CJ/mol-K) 24.3 24.4 25.6 25.0 26.8 28.0 75.4 38 900 385 130 450 130 140 4190 2100 6.波動與光 7 近代物理 8.近代科技1 The final temperature= 分數= 3 可嘗試次數= 5 ° °C 相對誤差=0.05 目前剩餘2次,可繼續嘗試 9.近代科技2 : :29 10 近代科技3 量子電腦 这三 重設 X 三 VPYTHON 下午08 星期日 2021/6/13 https://physexp thu edu tw/AP/C/NP/NP-003/NP-003-T-06 php

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

物理求解答

Find the following values for both correlated and uncorrelated sounds: Correlated Uncorrelated a) 80 dB + 80 dB b) 80 dB + 78 dB c) 80 dB + 76 dB d) 80 dB + 74 dB e) 80 dB + 72 dB f) 80 dB + 70 dB