請問這題應該如何計算？

45 表觀 亂流 暫時切 45. 45./ An airplane encounters sudden turbulence, and you feel momen- tarily lighter. If your 'apparent weight seems to be about 75% of your normal weight, what are the magnitude and direction of the plane's acceleration? 大小 2.45 m/s², downward

我想要知道這題的解題過程，算了好幾次都不對..

13.6474.204 練習題8.12 試求圖 8.30 電路的I。 I 答:9.546/33.8° A. 142 -j312 8 92 + 45/30° V j52 000 5 S2 1012 -j2 2 8.30 練習題 8.12 的電路

近代物理求解：

Problem 28. Consider the process A* + A+), and A* is stationary (at rest). This is the process that an excited atom emits a photon and goes back to the ground state atom A. Assume that the excited atom has a rest mass M6. Show that v-mi (loro) hvo (4.3.14) = 1 2M where v is the photon frequency if the recoil is taken into account, and vo is the photon frequency if the recoil is not taken into account.

普通物理 想請問這題該如何計算呢？ What vertical launch speed is necessary to get a rocket to an alti-tude of 1200 km? 答案為4.45km/s

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

[大二物理系 應用數學］ 想問我的過程有哪裡錯了呢～因為跟答案不太一樣～謝謝🙏

dy dx + tan (sal) Vix)= y x dcux) doo st t tan v ft x. du i dsinu Tanv do 圣 ² dx enpolt é sinu + c en/sinol = ln 101 sin 1 y y = x + e" xo sint (sin / sint (xre) 7 y = x sin" (x+)= sin" (x+C) but ang : y = x sin "AX (A : const)

求解10xBSA怎麼解？

Exercise 1 • A5 kb plasmid DNA has two Bam HI sites. You would like to use this enzyme to digest 5ug of this DNA. How would you do? (DNA concentration: 2 mg/ml) Bam HI concentration: 20000 U/ml Unit definition of Bam HI: 1 unit enzyme can completely digest 1 ug of lambda DNA at 37 °C in 1 hour. (lambda DNA has 48500 bp and 5 Bam HI sites) The reaction needs supplement with 100 ug/ml bovine serum albumin (BSA, 10x concentration) • Calculate the volume of all ingredients and setup the reaction table.

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).