114年hce_kmu — 物理及化學

共 90 題 · 含 AI 詳解

#1 A particle moves in a track and its speed are recorded and plotted in the figure… › #2 A particle moves in simple harmonic motion according to $x = 2\sin(15t)$, where… › #3 Consider a very small hole in the bottom of a tank 20 cm in diameter filled with… › #4 A small object of mass $m$ is suspended from a string of length $L$. The gravita… › #5 A carnival merry-go-round rotates about a vertical axis at a constant rate. A ma… › #6 A 2 kg object is subjected to three forces that give it an acceleration… › #7 $n$ moles of gas in a container of volume $V_i$ at temperature $T$ expands rapid… › #8 A medical defibrillator stores 320 J in a 40.0 $\mu F$ capacitor. What is the vo… › #9 The figure shows three electric charges labeled Q1, Q2, Q3, and some electric fi… › #10 A particle experiences a force given by $F(x) = \alpha - \beta x^3$. Find the po… › #11 A DC voltage of 110 V is applied to a heater whose resistance is 15 Ohms when it… › #12 A wave has an angular frequency of 110 rad/s and a wavelength of 1.8 m. Calculat… › #13 A transverse wave traveling along a string transports energy at a rate $r$. If w… › #14 A 2.0 m string is fixed at both ends and tightened until the wave speed is 80 m/… › #15 The speed of yellow light (from a sodium lamp) in a certain liquid is measured t… › #16 Which of the following statements is incorrect? › #17 Which of the following statements is correct? I. An excited atom can return to i… › #18 Given $K_a$ values of the following acids: HClO$_4$ HOAc HCN HF $1 \times 10^7$… › #19 The molecular formula of the ion is XF$_3$S$^{3-}$, where X is an element from G… › #20 Which ion has the largest ionic size among the following? › #21 Compare the following molecules, what is the order of decreasing bond order? 1.… › #22 Which of the following statements is correct? › #23 Which chemical process gives beer its brown color? › #24 Arrange the following bonds in order of decreasing polarity: 1. H-H 2. C-F 3.… › #25 The density of a gas is 2 g/L at 3 atm and 27$^\circ$C. What is the molar mass o… › #26 Which of the following reactions does not involve oxidation-reduction? › #27 Calculate the standard change in enthalpy for the reaction and select the correc… › #28 Which of the following can be identified as a set of isotopes? Atomic nuclei con… › #29 Which of the following represents the electron configuration for an excited stat… › #30 The $^{238}_{92}\text{U}$ nucleus decays to form $^{206}_{82}\text{Pb}$ by produ… › #31 A 0.25 kg block oscillates on the end of the spring with a spring constant of 13… › #32 In designing buildings to be erected in an area prone to earthquakes, what relat… › #33 A 2 kg object is attached to an ideal massless horizontal spring of spring const… › #34 Two blocks connected by a cord (of negligible mass) that passes over a frictionl… › #35 A stuntman drives a car (without negative lift) over the top of a hill, and the… › #36 A uniform and thin stick of mass (m) and length (l) is held vertically by two st… › #37 A uniformly charged ring with a radius of $a$ is placed on the $xy$ plane with i… › #38 A technician wearing a brass bracelet enclosing area 0.005 m$^2$ places her hand… › #39 The howler monkey is the loudest land animal and, under some circumstances, can… › #40 A parallel-plate capacitor without dielectrics is charged with $+Q_0$ and $-Q_0$… › #41 The human ear canal is, on average, 2.5 cm long. It is open to the outside and i… › #42 The charge Q is -3.0 nC. How much charge q$_1$ is needed to bring charge q$_2$ i… › #43 A rectangular coil of $N$ turns, each of width $a$ and length $b$ is in a magnet… › #44 The surface water temperature in tropical oceans is above 25$^\circ$C, and the d… › #45 A cube of metal has an edge length of 10 cm. It has a density 3.0 g/cm$^3$ and a… › #46 Sound pressure level is defined as $\text{SPL(dB)} = 20 \log_{10}(P/P_0)$, where… › #47 A 5.0 L gas tank holds 1.7 mole of monoatomic helium (He) and 1.1 mole of diatom… › #48 A piece of thin uniform wire of mass $m$ and length $3b$ is bent into an equilat… › #49 One way to measure blood flow when blood vessels are exposed during surgery is t… › #50 Suppose that 1 mole of an ideal gas undergoes a free expansion to three times it… › #51 A proton of mass $m$ and charge $q$ is in uniform circular motion perpendicular… › #52 During each heartbeat, approximately 70 cm$^3$ of blood is pushed from the heart… › #53 A square 10-turn coil with edge-length 50 cm carries a current of 2 A. It lies i… › #54 An observer on the Earth measures the speed of spacecraft A to be $0.50c$ and th… › #55 Two sources of light illuminate a double slit simultaneously. One has wavelength… › #56 A family member is ready to have a brain scan using technetium-99*, an excited i… › #57 Light of wavelength 400 nm falls on a metal surface having a work function 1.70… › #58 You wish to pick an element for a photocell that will operate via the photoelect… › #59 X-rays are produced by bombarding a tungsten target with high-energy electrons.… › #60 A beam of light with intensity 40 W/m$^2$ is polarized along the y-axis as shown… › #61 The observed osmotic pressure for a 0.10 M solution of M(SO$_4$)$_2$ at 27$^\circ$… › #62 How many of the following given molecules have all their atoms lying in the same… › #63 The average osmotic pressure of human body fluids is approximately 7.7 atm. Supp… › #64 To cool 500 g of liquid water from 25$^\circ$C to 0$^\circ$C, what is the minimu… › #65 In a coffee-cup calorimeter, 1.60 g NH$_4$NO$_3$ is mixed with 75.0 g water at a… › #66 Methanol, a high-octane fuel, is extensively utilized in high-performance racing… › #67 In a high-spin octahedral complex, the metal ion has two more unpaired electrons… › #68 Which of the following statements is incorrect? › #69 The solubility of the ionic compound M$_2$X$_3$, having a molar mass of 288 g/mo… › #70 What is the pH of a 0.01 M MA solution where MA is a salt that fully dissociates… › #71 What is the equilibrium concentration of HA$^{2-}$ in a 1 M H$_3$A solution with… › #72 A certain drug is metabolized in the human body following second-order kinetics,… › #73 The balanced equation for the reaction of the gases nitrogen dioxide and fluorin… › #74 Consider the ammonia synthesis reaction: N$_{2(g)}$ + 3H$_{2(g)}$ $\rightarrow$… › #75 What is the solubility of solid CaF$_2$ (K$_{sp}$ =$4 \times 10^{-11}$) in a 0.1… › #76 In a real gas system, the van der Waals equation is used to consider gas behavio… › #77 Three electrochemical cells were connected in series so that the same quantity o… › #78 A pain relief medication indicates that every 6 g of powder contains approximate… › #79 Consider the molecular orbital energy level diagrams for O$_2$ and NO. Which of… › #80 Peramivir has shown to be effective against the influenza B virus. What is the d… › #81 Which of the following cycloalkenes would be expected to be stable? › #82 What is the structural relationship of the following two compounds? › #83 Two complex ions containing Ni are $[\text{Ni(NH}_3\text{)}_6]^{2+}$, which is b… › #84 Which of the following becomes more soluble in water upon addition of NaOH? › #85 Given the compound as shown below: Which of the labeled H atoms (1-5) in the fol… › #86 Which of the following compounds exhibits the highest stability? › #87 A metal fluoride crystallizes in a close-packed arrangement of fluoride ions, wi… › #88 As indicated by Lewis structures, which of the following species could not compl… › #89 Identify the major product of the reaction below. › #90 If a 20.0 g sample of CaCO$_3$ is put into a 20.0 L container and heated to 800$^\circ$… ›