112年hce_nchu — 物理

共 50 題 · 含 AI 詳解

#1 Dagwood and Blondie are driving two identical cars. Blondie is passing Dagwood a… › #2 On a distant planet where the gravitational constant $g = 6.0 \text{ m/s}^2$, Sh… › #3 Two blocks are in contact on a frictionless table. A horizontal force is applied… › #4 The accelerations of the blocks A and B respectively as seen in the situation sh… › #5 For the conical pendulum shown, the $0.40 \text{ kg}$ mass has a periodic time o… › #6 An astronaut, spaced out as usual, sits in her room at position "F" on the outer… › #7 A piece of thin uniform wire of mass $m$ and length $3b$ is bent into an equilat… › #8 A uniform solid sphere of mass $M$ and radius $R$ rotates with an angular speed… › #9 A record is dropped vertically onto a freely rotating (undriven) turntable. Fric… › #10 In the figure, a mass of $31.77 \text{ kg}$ is attached to a light string that i… › #11 A uniform sign is supported against a wall at point $P$ as shown in the figure.… › #12 A $2.0 \text{ kg}$ block on a frictionless table is connected to two ideal massl… › #13 In the figure, two masses, $M = 16 \text{ kg}$ and $m = 12.8 \text{ kg}$, are co… › #14 A standing wave is oscillating at $690 \text{ Hz}$ on a string, as shown in the… › #15 A violin with string length $32 \text{ cm}$ and string density $1.5 \text{ g/cm}$… › #16 Consider a very small hole in the bottom of a tank $20.0 \text{ cm}$ in diameter… › #17 A $7.8\text{-kg}$ solid sphere, made of metal whose density is $2500 \text{ kg/m}^3$… › #18 A heat conducting rod, $0.90\text{m}$ long, is made of an aluminum section that… › #19 Some properties of glass are listed here: Density: $2300 \text{ kg/m}^3$ Specifi… › #20 If we double the root-mean-square speed (thermal speed) of the molecules of a ga… › #21 An ideal gas in a balloon is kept in thermal equilibrium with its constant-tempe… › #22 The graph in the figure shows a cycle for a heat engine for which $Q_H = 35 \text{ J}$… › #23 The second law of thermodynamics leads us to conclude that › #24 A crane lifts a $425 \text{ kg}$ steel beam vertically a distance of $117 \text{m}$… › #25 A certain spherical asteroid has a mass of $3.5 \times 10^{16} \text{ kg}$ and a… › #26 A loop of wire (resistance $= 2.0 \text{ m}\Omega$) is positioned as shown with… › #27 Current enters a circular loop as shown below. At point P, where $x = a$, the ma… › #28 Determine the equivalent capacitance in pF for the network shown when $C = 12 \text{ pF}$… › #29 By what factor is the drift velocity in a conductor changed if the voltage is do… › #30 The distance from an antinode to a node nearest to that antinode is › #31 A flute player holding a tone with a frequency of 520 Hz approaches a wall at 2… › #32 The $xy$ plane is "painted" with a uniform surface charge density equal to $40 \text{ nC/m}^2$… › #33 A charged conductor has the oval shape shown below. When we compare the potentia… › #34 Three charges, the outer two $+q$, and the inner one $-q$, are placed in a line,… › #35 Two long parallel wires carry unequal currents in the same direction. The ratio… › #36 A 30 turn square coil (length of side $= 12 \text{ cm}$) with a total resistance… › #37 Charge Q is spread uniformly along the circumference of a circle of radius R. A… › #38 A solid insulating sphere of radius R contains positive charge that is distribut… › #39 If the electric field is in the positive x direction and has a magnitude given b… › #40 Points R and T are each a distance d from each of two particles with equal posit… › #41 A metal bar sliding on parallel rails a length $\ell$ apart from one another is… › #42 An alpha particle is a nucleus of helium. It has twice the charge and four times… › #43 The figure shows a $2.0\text{-cm}$ diameter roller that turns at $90 \text{ rpm}$… › #44 The heater element of a particular $120\text{-V}$ toaster is a $8.9\text{-m}$ le… › #45 The figure shows a velocity selector that can be used to measure the speed of a… › #46 As shown in the figure, a wire and a $10\text{-}\Omega$ resistor are used to for… › #47 A man is nearsighted and cannot see things clearly beyond $110 \text{ cm}$ from… › #48 Light of wavelength $500 \text{ nm}$ illuminates a round $0.50\text{-mm}$ diamet… › #49 Given that the wavelengths of visible light range from $400 \text{ nm}$ to $700 \text{ nm}$… › #50 What resistance should be added in series with a $3.0\text{-H}$ inductor to comp… ›