108年hce_kmu — 物理及化學

共 90 題 · 含 AI 詳解

#1 The horizontal surface on which the objects slide is frictionless. If M = $5.0\text{ kg}$… › #2 The mass in the figure slides on a frictionless surface. If m = $2\text{ kg}$, $k_1$… › #3 A pivoted bar has a weight of $10\text{ kg}$ and a length of 1 meter, and is sup… › #4 A circular track of radius 1000 meters is banked at 30 degrees without any frict… › #5 Two point masses $1\text{ kg}$ and $2\text{ kg}$ are on a massless bar with axis… › #6 The disk A with moment of inertia $I_1$ rotates with angular speed $\omega_1$ ab… › #7 The same force F is applied horizontally to bodies 1, 2, 3, and 4, of masses m,… › #8 What is the entropy change for one mole ideal gas that expands from volume V to… › #9 The superposition of two waves $y_1 = (0.007cm)\cos[2\pi(\frac{156t}{s})]$ and… › #10 A diver swims from 2 meters to 10 meters below the surface of a lake. What is th… › #11 A Carnot engine takes 2000 J of heat from a reservoir at 500 K, does some work,… › #12 A series of 3 uncharged concentric spherical conducting shells surround a small… › #13 A conductor of radius r, length $\ell$, and resistivity $\rho$ has resistance R.… › #14 There is an electric dipole in an electric field, as shown below. Which of the f… › #15 A circuit contains a resistance and a charged capacitance. The resistance is 20… › #16 Using the rules of significant figures, calculate the following: $0.102 \times 0.0821 \times 273/1.01$ › #17 Which of the following best describes an orbital? › #18 Which of the following is the correct electron configuration for $OF^-$? › #19 Which of the following resonance structures is the most stable? › #20 Which of the following does NOT contain at least one pi bond? › #21 Order the intermolecular forces (dipole-dipole, London dispersion, ionic, and hy… › #22 Which separation technique is based on differences in the affinity of the substa… › #23 Which of the following gives correct rank of the ionization energies for Cs, Na,… › #24 Naturally occurring copper exists in two isotopic forms: $^{63}\text{Cu}$ and $^{65}\text{Cu}$… › #25 The correct mathematical expression for finding the molar solubility(s) of $Al(OH)_3$… › #26 Consider the following octahedral complex structures, each involving ethylene di… › #27 For which of the following processes would $\Delta S^\circ$ be expected to be mo… › #28 Why is this reaction considered to be exothermic? › #29 The structure of pentose is shown on the down figure. How many carbon atoms with… › #30 Which one is Bragg equation? › #31 A uniform solid ball with mass M is supported by a massless rod. Derive the peri… › #32 A rocket moving in space, far from all other objects, has a speed of $v_i$ relat… › #33 A satellite is in a circular orbit and has a total mechanical energy of U. If th… › #34 A particle of mass m = $0.10\text{ kg}$ and speed $v_0 = 5.0\text{ m/s}$ collide… › #35 A set of pulleys is used for supporting the calf ($100\text{ N}$). Please determ… › #36 Nadal received a shot with the tennis ball ($60\text{ g}$) travelling horizontal… › #37 The aluminum cylinder is $0.10\text{ m}^2$ (cross-sectional area) and $0.35\text{ m}$… › #38 The wing of an airplane has an area of $1\text{ m}^2$, and its wing thickness is… › #39 A large tank of water has a hose connected to it. The tank is sealed at the top… › #40 A stainless steel container has a surface area of $0.5\text{ m}^2$ and thickness… › #41 A jack could lift a very heavy object like a car. It compressed air and exerts a… › #42 An ambulance moves at a speed of $50\text{ km/hr}$, and its siren emitting sound… › #43 One rope is wiggled with frequency f = $2.0\text{ Hz}$, amplitude A = $1.0\text{ m}$… › #44 There is a $1\text{ kg}$ gallium block and its melting point is around 30°C. Wha… › #45 Two charges of $15\text{ pC}$ and $-40\text{ pC}$ are inside a cube with sides t… › #46 A solid conducting sphere (radius = $5.0\text{ cm}$) has a charge of $0.25\text{ nC}$… › #47 A segment of wire of total length $2.0\text{ m}$ is formed into a circular loop… › #48 A circuit consists of a capacitor and an inductor that are sequentially connecte… › #49 Three thin lenses with focal lengths $0.1\text{ m}$, $0.2\text{ m}$, and $0.3\text{ m}$… › #50 A cloud layer is $1000\text{ m}$ above the planet, with the area of $1\times10^6\text{ m}^2$… › #51 Two isotopes leave the slit at point S and into a magnetic field of magnitude $0.100\text{ T}$… › #52 If a farsighted patient’s near point of eyes is $40\text{ cm}$, what kinds of le… › #53 There are two point-charges −Q, and 2Q located at the distance 2d, and 4d from t… › #54 There is a cylindrical conductor with radius R which carries current I. Which di… › #55 There are two parallel, straight current-carrying conductors with current $I_1$… › #56 A medical blue light therapy laser treatment pen emits a blue light with wavelen… › #57 There is an ideal polarizer with the angle of $\phi = 60^\circ$ between the pola… › #58 There is thin converging lens with focal length f = $140\text{ mm}$. When an obj… › #59 The X-ray typically operate at a potential difference of $1.00 \times 10^5\text{ V}$… › #60 In process ab, $20\text{ J}$ of heat is added to the system. In process bd, $80\text{ J}$… › #61 Regarding the reactions of organic compounds, which of the following statements… › #62 Consider the following data concerning the equation: $H_2O_2 + 3I^- + 2H^+ \rightarrow I_3^- + 2H_2O$… › #63 Which of the following statements are true? A catalyst can act in chemical react… › #64 Which of the following statements is true about the following electrochemical ce… › #65 Examine the phase diagram for the substance Bogusium (Bo) and select the correct… › #66 A $0.20\text{ M}$ solution of $MgSO_4$ has an observed osmotic pressure of $6.0\text{ atm}$… › #67 Adipic acid contains 49.32\% C, 43.84\% O, and 6.85\% H by mass. What is the emp… › #68 On a new temperature scale (°L), water boils at 155.00°L and freezes at –10.00°L… › #69 When the following equation $C_2H_5OH + O_2 \rightleftharpoons CO_2 + H_2O$ is b… › #70 To form a buffer solution with pH = 9.0, how many moles of $NH_4Cl$ should be ad… › #71 Which statement about hydrogen bonding is true? › #72 How many effective atoms are there in a body-centered cubic unit cell? › #73 Which of the following has a zero dipole moment? › #74 An electron is promoted from the $\pi$ to the $\pi^*$ molecular orbital in an $O_2$… › #75 Determine the percent dissociation of a $0.18\text{ M}$ solution of hypochlorous… › #76 The solubility of $CaSO_4$ in pure water at $0^\circ\text{C}$ is $1.14\text{ gram}$… › #77 It is desired to determine the concentration of arsenic in a lake sediment sampl… › #78 As shown below, compound IV can be prepared from reagents I, II, and III. Which… › #79 The equilibrium constant of a certain reaction was measured at various temperatu… › #80 For the reaction $N_2(g) + 2H_2(g) \rightarrow N_2H_4(l)$, if the percent yield… › #81 A sample of helium gas has been contaminated with argon gas. At $1\text{ atm}$ a… › #82 Which of the following is NOT a state function? › #83 A metal ion in a high–spin octahedral complex has four more unpaired electrons t… › #84 Which of the following coordination compounds will form a precipitate when treat… › #85 Which of the following species is diamagnetic? › #86 Which of the lines in the figure below is the best representation of the relatio… › #87 Sulfur tetrafluoride adopts a see-saw geometry with two axial F atoms with a F–S… › #88 According to the Haber-Bosch process, which statement is true? › #89 A sample of a washing powder that contains a mixture of $Na_2CO_3$ and $NaHCO_3$… › #90 A student gave a molecule the following name: 2-methyl-4-t-butylpentane However,… ›