107年hce_kmu — 物理及化學

共 90 題 · 含 AI 詳解

#1 Two boxes are connected by a string, as shown below. The string and pulley are m… › #2 A $70$ kg person stands on one end of a one-meter long board. The board is unifo… › #3 A thin uniform rod of mass $M$ and length $L$ is positioned vertically above an… › #4 A disk with a radius of $2.0$ m and a rotational inertia of $0.40\text{ kg}\cdot\text{m}^2$… › #5 A violin is played with an initial intensity $I_i$ changing to a final intensity… › #6 An engine is designed to obtain energy from the temperature gradient of the ocea… › #7 If $10$ kg of ice at $0^\circ\text{C}$ is mixed with $100$ kg of water at $80^\circ\text{C}$… › #8 Some species of whales can dive to the depth of one kilometer. What is the appro… › #9 A proton moves around a circular path (radius = $2.0$ mm) in a uniform $0.25$ T… › #10 A current loop freely rotates in a uniform magnetic field ($B = 0.50$ T). The ma… › #11 A $2.0\text{ k}\Omega$ resistor and an initially uncharged $6.0\text{ }\mu\text{F}$… › #12 A $3\text{ }\mu\text{F}$ capacitor is connected in series with a $6\text{ }\mu\text{F}$… › #13 A magnetic field is directed out of the page. Two charged particles enter from t… › #14 In radioactive decays, which of the following statements is incorrect? › #15 In X-ray spectrum, which of the following statements is correct? › #16 Carbon monoxide is commonly used to reduce ores to produce free metals and carbo… › #17 Which of the following is the correct order of boiling points for $\text{KNO}_3$… › #18 How many chiral centers are in this molecule? › #19 Which of the following statements is incorrect? › #20 Which of the following statements is incorrect? › #21 When $6\text{ M}$ sodium hydroxide is added to an unknown white solid, the solid… › #22 A chemist wishes to separate benzoic acid from 4-hydroxybenzaldehyde. Which is t… › #23 The reaction system… › #24 Which elements are most similar in atomic size? › #25 In the Lewis structure of $\text{I}_3^-$, there are _________ electrons around t… › #26 Which of the following statements is incorrect for colloids? › #27 Which organic base is NOT found in RNA? › #28 The figure below is a cross section of the electron probability distribution for… › #29 A sample of a white solid is known to be $\text{NaHCO}_3$, $\text{AgNO}_3$, $\text{Na}_2\text{S}$… › #30 The Haber process _____________________ › #31 As the figure shows, a stone was thrown on the roof of height $h=10$ m from the… › #32 A force $\vec{F} = (4.0\hat{i} + 2.0\hat{j} + 3.0\hat{k})\text{ N}$ acts on a pa… › #33 A $10$ g bullet moving $1000$ m/s strikes and passes through a $2.0$ kg block in… › #34 A box of mass $1$ kg was placed on the edge of a rotating table with radius $10$… › #35 A $10$ N tangential force is applied at the edge of a $20$ kg disk with a radius… › #36 A uniform beam of weight $300$ N and length $3.0$ m is suspended horizontally. O… › #37 A force $\vec{F} = (-4.0)x (\text{N/m}) \hat{i} + (2.0)y (\text{N/m}) \hat{j}$ i… › #38 A single conservative force $F(x)$ acts on a particle that moves along an x axis… › #39 In the figure, a block of mass $m = 20.0$ kg slides through a horizontal frictio… › #40 A car approaches a stationary police car at $36$ m/s. The frequency of the siren… › #41 A pipe open at both ends has a fundamental frequency of $f$. A second pipe close… › #42 A converging glass lens with a refractive index of $1.5$ is placed in water with… › #43 An object is located at $40$ cm from the first of two thin converging lenses of… › #44 Two stars are separated by an angle of $3 \times 10^{-5}$ radians. What is the d… › #45 Unpolarized light of intensity $I_0$ is incident on a series of three polarizing… › #46 If a gas undergoes a series of pressure (P) and volume (V) changes, as shown bel… › #47 There is a laminar flow in a tube. When both the radius and length of the tube a… › #48 A steam of water of density $\rho$, cross-sectional area A, and speed $\upsilon$… › #49 Water is flowing at $4.0$ m/s in a circular pipe. If the diameter of the pipe de… › #50 A $5.0$ nC point charge is embedded at the center of a nonconducting sphere (rad… › #51 A $5.0$ A current flows along a wire with $\vec{l} = (1.5\hat{i} - 2.0\hat{j})\text{m}$… › #52 The current in an inductor ($L = 40$ mH) is described by $I = 3.0 - 4.0\text{t} + \text{t}^2$… › #53 A stiff wire bent into a semicircle of radius $a = 2.0$ cm is rotated at constan… › #54 Three long wires parallel to the x axis carry currents as shown. If $I = 20\text{ A}$… › #55 The coil shown below has 2 turns, a cross-sectional area of $0.20\text{ m}^2$, a… › #56 A series RLC circuit is connected to an ac source ($\xi_{\text{rms}} = 120\text{ V}, f = 60\text{ Hz}$… › #57 The rest mass of an electron is $m_0$. What is the kinetic energy of an electron… › #58 In the hydrogen spectrum, the ratio of the wavelengths for Lyman-$\alpha$ radiat… › #59 A sample of radioactive nuclei of a certain element can decay only by $\gamma$-e… › #60 The radioactive isotope $^{226}\text{Ra}$ decays to $^{222}\text{Rn}$ with a hal… › #61 Which of the following solution has shown the correct titration curve? › #62 Cisplatin $cis\text{-[PtCl}_2\text{(NH}_3\text{)}_2\text{]}$ has been applied as… › #63 A chemist needs to prepare a buffered solution using one of the following acids… › #64 Of the following eleven compounds, how many of them have aromatic character? › #65 Which of the following species has the lowest dissociation energy? › #66 According to the Bohr Model, please use the equation below and calculate the min… › #67 About the atomic orbitals, which of the following statements is incorrect? › #68 $\text{NF}_3$ has a bond angle of $102.5^\circ$, while $\text{PF}_3$ has a bond… › #69 When the reaction below is at equilibrium, what is the temperature?… › #70 Please balance the following equation (o, p, q, x, y, z are reaction coefficient… › #71 For the reaction $\text{A} + \text{B} \rightarrow \text{products}$, the followin… › #72 In the blood of an adult human, there are approximately $2.64 \times 10^{13}$ re… › #73 What is the rate constant for radioactive decay of $^{14}\text{CO}_2\text{(g)}$… › #74 1 mg of a non-electrolyte protein is dissolved in enough water to make $1.00$ mL… › #75 When the permanganate ion, $\text{MnO}_4^-$, acts as an oxidizing agent which fo… › #76 Alanine, $\text{H}_2\text{NCH(CH}_3\text{)CO}_2\text{H}$, has $K_a = 4.5 \times 10^{-3}$… › #77 The rate of effusion of an unknown gas is measured and found to be $24$ mL/min.… › #78 An unknown concentration of $\text{NH}_3$ solution is titrated by HCl solution.… › #79 $\text{HNO}_2\text{(l)} + \text{NaCl(s)} \rightarrow \text{HCl(g)} + \text{NaNO}_2\text{(s)}$… › #80 The crystal field diagram for a linear transition metal complex $\text{ML}_2$ wh… › #81 Consider the following complexes: (en=$\text{H}_2\text{N-CH}_2\text{-CH}_2\text{-NH}_2$… › #82 Four solutions have violet, blue, yellow and green color, respectively. Each sol… › #83 Which of the following statements is the best to describe the results of attempt… › #84 Which isomers of $\text{C}_4\text{H}_8$ has the lowest absolute entropy at $25^\circ\text{C}$… › #85 What are the factors influencing the infrared frequency of the CX vibration for… › #86 The radioactive isotope $^{247}\text{Bk } (Z = 97)$ decays by a series of $\alpha$… › #87 Consider the galvanic cell shown below (the contents of each half-cell are writt… › #88 A galvanic cell consists of two half-reactions:… › #89 Alkali metals (Group 1) are different with alkaline earth metals (Group 2). Whic… › #90 The partial pressure of $\text{CO}_2\text{(g)}$ is $0.22$ atm and that of $\text{CO(g)}$… ›