救命啊

A point charge Q is placed at one corner of a Gaussian surface in the form of a cube of side L. What is the total "electric flux" through this Gaussian surface in terms of Q/ & o? (A) 0; (B) 1/8; (C) 3/4; (D) 5/6; (E) None. Which is not correct for the dielectric constant (x) of a substance? (A) It is a measure

G小題錯在哪⋯

Au equation of state relates the state v (g) True false The internal energy of an animal cell (system) can only be changed by the flow of heat (9) or work (w) across the boundary between the system and surroundings. (4 points). s'open system m True false: Find the incorrect conclusions from the following sentences and correct them. (20 points).

第三小題錯在哪裡

3.)* True/false: Find the incorrect conclusions from the following sentences and correct them. (12 points) b H2 •T2 H An ideal gas changes its states isothermally through a chemical reaction. AH is zero because AH is equal to Cp x AT. H TI ® The pressure change does not contribute to the energy state (U or H) of ideal gases. P * Figure 1 is correct for illustrating the enthalpy state of real gases. Fig. 1 AT1 ATL+1a na:daalraa ahonnan kantot fo. U +- IT 1.1 D1

畫線地方看不太懂 求解說謝謝

INARA WEREW 馬上練習1 如圖所示,有一半徑為R、重為W、材質均匀的光滑輪子,與 高h的階梯接觸,靜置於水平地面上。今在輪子中心處施一水 上, 平力F,使其爬上階梯,若輪子不變形,回答下列問題: (1)輪子在受到一水平力F,但尚未脫離地面,呈靜態平衡時 輪子受到哪些力?列舉並繪出其力圖 (2)承上題,列出輪子所受垂直與水平分力的方程式。 (3)以輪子與階梯的接觸點點為參考點,列出力矩方程式,在輪子中心處最少需施力多少 才能使輪子脫離地面? 《 《指考》

怎麼寫？ 🙏P單位跑到指數去我就不會了

Dimensional Consistency 1.9 The density of a certain liquid is given an equation of the following form p = ( AT + BT2) eCP Where pis density in g/cm3; T temperature in K; P pressure in atm; and A, B, and C are constant. The equation is assumed dimensionally consistent. What is the unit of B?

1.5怎麼換

Japan baseball major league, Unit Conversion 1.5 Convert 2.7104 Btu/(Ib.sec) to cal/(kg.min) (round to 10-1)

21題 教教我QAQ

Section 11.3 Angular Momentum J-s behind rmv a he ur 265 = ? a ter 30. Example 11.1: A 58.1 Iw COMP string and whirled at 18. Express the units of angular momentum (a) using only the funda- momentum of magr mental units kilogram, meter, and second; (b) in a form involving the circular path. Fir newtons; (c) in a form involving joules. marw horizontal and (b) the 19. Use data from Appendix E to make an order-of-magnitude esti- 31. Example 11.2. A stai mate for the angular momentum of our Solar System about the Max 27 the end of its lifetime galactic center. mu = 17.293 of radius 4.96 X 10' 20. A gymnast of rotational inertia 63 kg•m? is tumbling head over heels dwarf of radius 4.21 with angular momentum 460 kg•m?/s. What's her angular speed? 17.99 acted on the core, fine A 660-g hoop 95 cm in diameter is rotating at 170 rpm about its 32. Example 11.2: Astro 22. A 1.3-th-diameter golf ball has mass 45 g and is spinning at central axis. What's its angular momentum? L: 1W=0-66*(0-95) x 140x277.10 km and determin core that collapsed to 3000 rpm. Treating the golf ball as a uniform solid sphere, what's ing with a period of 4 its angular momentum? 18-3 33. Example 11.2. The s 10-598 rpm With her arms outstre Section 11.4 Conservation of Angular Momentum tational inertia is 3.5 23. A potter's wheel with rotational inertia 6.20 kg•m? is spinning (Fig. 11.6b), her rot freely at 20.0 rpm. The potter drops a 2.50-kg lump of clay onto her final spin rate? L = 6 2 x 2-1 = 12-99~13 - 2x2 22 13= 60.48)" x 2.5 W W = 2 . X z W = 20x2T 60 ²2.1 ~ 1 12.574

第21題 到底要怎麼寫ಥ_ಥ

Section 11.3 Angular Momentum J-s behind rmv a he ur 265 = ? a ter 30. Example 11.1: A 58.1 Iw COMP string and whirled at 18. Express the units of angular momentum (a) using only the funda- momentum of magr mental units kilogram, meter, and second; (b) in a form involving the circular path. Fir newtons; (c) in a form involving joules. marw horizontal and (b) the 19. Use data from Appendix E to make an order-of-magnitude esti- 31. Example 11.2. A stai mate for the angular momentum of our Solar System about the Max 27 the end of its lifetime galactic center. mu = 17.293 of radius 4.96 X 10' 20. A gymnast of rotational inertia 63 kg•m? is tumbling head over heels dwarf of radius 4.21 with angular momentum 460 kg•m?/s. What's her angular speed? 17.99 acted on the core, fine A 660-g hoop 95 cm in diameter is rotating at 170 rpm about its 32. Example 11.2: Astro 22. A 1.3-th-diameter golf ball has mass 45 g and is spinning at central axis. What's its angular momentum? L: 1W=0-66*(0-95) x 140x277.10 km and determin core that collapsed to 3000 rpm. Treating the golf ball as a uniform solid sphere, what's ing with a period of 4 its angular momentum? 18-3 33. Example 11.2. The s 10-598 rpm With her arms outstre Section 11.4 Conservation of Angular Momentum tational inertia is 3.5 23. A potter's wheel with rotational inertia 6.20 kg•m? is spinning (Fig. 11.6b), her rot freely at 20.0 rpm. The potter drops a 2.50-kg lump of clay onto her final spin rate? L = 6 2 x 2-1 = 12-99~13 - 2x2 22 13= 60.48)" x 2.5 W W = 2 . X z W = 20x2T 60 ²2.1 ~ 1 12.574

可以幫我看看為什麼不能用我圈起來的方法算？

| | 日 m d m 如圖所示,一艘質量為m的太空船,在地球與月球的; 連心線上航行,已知地球與月球的質量分別為81M與 M,且兩球心間的距離為d。若不計其他天體的影響 時,則在二者連線間,距地球 Tod 所受總重力為零。 2 M 處,太空船 81M GM m -= 0 m 司 2 r? SIM m 6.67x10 " x 81MxM / d Condo = 0. a d-KERLER ()LA || 2 x X 2 二 8|| x (d-x² 6.67 + 10 x 814 xgh 6.43% New TES (d-) 9A ),而其 dex 81 (d-x) = x ² (d- x x = 1:87 2x - T x sld - 81 d4 184 x td.x=1.92 = 、8- -) old ² 162d818oxto, doxe 2 2 sta 不 9

請問17題該怎麼寫呢 請求協助🙏🙏🙏 線上等 超急！！！

90xNT .90xNool Jg=9.8 (A) 2 lay=O olm But (B)4 v=Bgh (C) 9 (D) 30 - 9oxo.) con (E) 90。 (117. 承第16題,已知這隻蟲落地前就會達到終端速,當這隻蟲的下落卖率最大,其 =9 當的為 受到的空氣阻力量值為多少牛頓? (A) O ilk 4nl L V pRq2 (B)2 下受 it 5、 → TW > YW st=0 小 a Vmax D CER 2 Ww 经 R (C) 4. (D) 6 a 4 > -D (E) 9. 18. 承第17題,這隻蟲與地面接觸 0.2秒後,由終端速率變成靜止,這個過程中蟲所受的平 均力為多少牛頓? (A) 0 F=mxa (B)4 A/ G OF = mxa 90 =mx ot 心女 9 Toffa 45