115年hce_kmu — 物理及化學

共 90 題 · 含 AI 詳解

#1 A normal diastolic blood pressure is 80 mmHg. What is this pressure expressed in… › #2 A ball is kicked from the ground with an initial speed of $50.0 \text{ m/s}$ at… › #3 A particle moves along a vertical circular track of radius R. The circular track… › #4 Mary throws a ball with 0.80 kg mass against a brick wall. The ball is moving ho… › #5 Find the equivalent capacitance between $a$ and $b$. › #6 Incompressible oil with density $\rho$ is pumped through a cylindrical pipe at a… › #7 Because the ear is sensitive over a broad range of intensities, a logarithmic me… › #8 If a simple pendulum oscillates with small amplitude and its length is doubled,… › #9 Two long straight wires are mounted parallel to each other, with one wire direct… › #10 An electric dipole with a dipole moment magnitude of $p = 5.0 \times 10^{-6} \text{ C}\cdot\text{m}$… › #11 Large aperture telescopes are used primarily to _______. › #12 An electromagnetic wave with a peak magnetic field magnitude of $1.5 \times 10^{-7} \text{ T}$… › #13 If Josh’s face is 30.0 cm in front of a concave shaving mirror creating an uprig… › #14 What is the energy of each photon produced by positron–electron annihilation? ($c$… › #15 When beryllium $^9_4Be$ is bombarded by $\alpha$ particles, radiation $X$ will b… › #16 All of the following compounds are soluble in water except _______. › #17 How many stereogenic centers are there in Lovastatin (Mevacor®, a cholesterol-lo… › #18 Identify which of the following ions has the largest size. › #19 Triethylamine [$(CH_3CH_2)_3N$] is a molecule in which the nitrogen atom is ____… › #20 Rank the following elements in order of decreasing electronegativity. I. C II. H… › #21 Which of the following ions is paramagnetic? › #22 What is the number of nearest neighbors in a body-centered cubic lattice? › #23 What is the coefficient of $\text{H}_2\text{O}$ when the following reaction is b… › #24 Based on the following half-reactions under standard conditions, which metal, $\text{Cu}$… › #25 Determine the $\Delta S^\circ$ that is expected to be positive for the following… › #26 Which of the following species is weak electrolyte after dissolved in $\text{H}_2\text{O}$… › #27 The hydrogen element occurs as three isotopes: $^1\text{H}$, $^2\text{H}$ and $^3\text{H}$… › #28 For the reaction… › #29 Which of following orbitals represents $3d_{xy}$? › #30 In which structure(s) below does nitrogen have a formal charge of +1? › #31 A particle moves along the x-axis with an acceleration given by $a(t) = -kv^2$,… › #32 A uniform circular disk of mass $M$ and radius $r$ is connected by a light cord… › #33 A 20 g bullet moving vertically upward at 1000 m/s strikes and passes through th… › #34 A water storage tank with cross-sectional area $A_1$ is filled to a height of $h$… › #35 In hydrotherapy training at KMU, a therapist measures a patient's body density u… › #36 A hospital keeps oxygen cylinders in an emergency room. An oxygen cylinder conta… › #37 During a liver ultrasound scan, the transducer operates at frequency f = 5.0 MHz… › #38 The deformation and the restoring force of an elastic string obey Hooke's law. W… › #39 A supersonic jet fighter flies horizontally at a constant altitude of 3400 m wit… › #40 An ideal monatomic gas expands from volume $V_0$ to $2V_0$ along a straight line… › #41 A cylindrical rod of length $L$ and radius $R$ is insulated on its surface. Its… › #42 The figure represents a closed cycle for an ideal gas (the figure is not drawn t… › #43 A heat engine operates between a high-temperature reservoir at 500 K and a low-t… › #44 A gas is at 200 K. If we wish to double the root-mean-square speed of the molecu… › #45 A long coaxial cable consists of a solid inner conductor of radius $a$ carrying… › #46 A small AC generator is used to power motion sensors on a treadmill. The generat… › #47 When operating on a 120-V circuit, an electric heater receives $1.30 \times 10^3 \text{ W}$… › #48 As shown in the figure, three charged particles (1, 2, and 3) are positioned alo… › #49 A parallel-plate capacitor has an initial capacitance of $C_0 = 6 \mu\text{F}$.… › #50 In two LRC series AC circuits, suppose circuit 1 has $R_1 = 60 \Omega$, $C_1 = 300 \mu\text{F}$… › #51 A long solenoid has 5000 turns per meter and a cross-sectional area of $2.0 \times 10^{-4} \text{ m}^2$… › #52 A wire is bent into a three-quarter circular loop of radius $R$ and carries a st… › #53 A circular coil 0.05 m in radius, with 50 turns of wire, lies on a horizontal pl… › #54 A beam of monochromatic light with a wavelength of $\lambda = 600 \text{ nm}$ is… › #55 Alice directs a beam of 0.12 nm x rays at certain planes of a silicon crystal. A… › #56 A rectangular conducting loop with resistance $R$ lies in the same plane as a lo… › #57 A thin layer of oil with an index of refraction n = 1.5 coats a glass plate with… › #58 What is the de Broglie wavelength of an electron accelerated from rest through a… › #59 The radioactive tracer has a half-life of $T_{1/2} = 2.0 \times 10^3$ years. A s… › #60 In the Bohr model of the hydrogen atom, the reference level of zero energy is ta… › #61 Temperature dependence of resistivity for three materials (A, B and C) is depict… › #62 Which of the following terms best describes the pair of compounds shown below? › #63 Rank the following in terms of nucleophilic strength: I. $\text{CH}_3\text{S}^-$… › #64 Consider the $S_N2$ reaction of 1-chloro-5-methylhexane with $\text{CN}^-$ ion.… › #65 A solution contains the ions $\text{Ag}^+$, $\text{Pb}^{2+}$, and $\text{Ni}^{2+}$… › #66 Which of the following functional groups is absent in the HIV protease inhibitor… › #67 In the unit cell of face-center cubic, the ratio of tetrahedral holes to atoms (… › #68 Which will be the major product when $N,N$-dimethylpropanamide is treated with $\text{LiAlH}_4$… › #69 According to the concept of hard and soft acids and bases (HSABs), arrange the s… › #70 Three types of chemical reactions are described below. Which of the following st… › #71 Under what condition would phenylalanine exist as in the following structure? › #72 Rank the bold hydrogens for the following compounds from most acidic to least ac… › #73 Which will be the major product when trans-1-bromo-2-methylcyclohexane reacts wi… › #74 Which conformation of trans-1-isopropyl-3-methylcyclohexane would be present in… › #75 Which of the following reagents can be used to convert cyclopentanol to cyclopen… › #76 When two carbenes collide, they immediately dimerize to give? › #77 Each of the diagram shown below represents the atomic orbitals that described th… › #78 Calculate the total number of unpaired electrons in the following complex ions:… › #79 Which will be the major product when diethyl heptanedioate reacts with sodium et… › #80 What is the symmetry of $\text{BF}_3$? › #81 How many moles of carbon dioxide are generated when one mole of the compound sho… › #82 Which of the following species is/are a resonance form(s) of the species in the… › #83 How many enantiomer(s) can be drawn from $\text{CH}_3\text{CHClCHBrCH}_3$? › #84 Consider the following equilibrium reaction:… › #85 Which will be the major product of the following reaction? › #86 Which will be the major product of the following reaction? › #87 How many unpaired electrons are found in complex $[\text{Mn}(\text{H}_2\text{O})_6]^{2+}$… › #88 Which of the following species obeys the 18-electron rule? › #89 Calculate $\Delta H^\circ$ for the reaction… › #90 When an iron knife is dipped in an aqueous solution of copper sulphate, a layer… ›