23 items
The radiation of a fixed infrared wavelength propagates through methane according to the exponential attenuation law.
A football is launched from a fixed point on level ground with initial speed $v$ at an angle $\alpha=30^\circ$ to the horizontal.
The physical system is a layer of fog consisting of identical spherical water droplets suspended in air.
A horizontal cylinder contains $n=1$ mole of an ideal gas.
A homogeneous plasma initially occupies a slab of thickness $x$ and contains a uniform density $n$ of positive ions and an equal density $n$ of electrons, where $n$ is the number of particles of each…
The system consists of two identical point masses, each of mass $m$, fixed at the ends of a massless rigid rod of length $l$.
A rigid conducting rod of length $l = 0.
A solid sphere of radius $R$ carries a uniform volume charge density $\sigma$ with units $\mathrm{C/m^3}$.
An ideal gas containing $n$ moles undergoes a quasistatic thermodynamic process in which the temperature $T$ is prescribed as a function of the volume $V$.
Two identical solid elastic spheres of radius $R = 1~\text{cm} = 1.
The system consists of a rigid tool, such as an awl, nail, or knife, interacting with a deformable material.
A stretched string performs small transverse vibrations.
A cubic vessel of edge length $a = 1~\text{cm} = 10^{-2}~\text{m}$ contains $n$ gas molecules at room temperature.
A submarine moves vertically downward with constant speed $u$ in still water where sound propagates with speed $V$.
A perfectly conducting isolated metal sphere of radius $R$ is placed in a uniform external electric field of magnitude $E$ directed along a fixed axis.
A satellite of mass $m$ moves around the Earth of mass $M$ in a nearly circular orbit of radius $r$ with orbital speed $v$.
A person jumps vertically upward from the surface of the Moon.
The problem involves a dynamometer sliding along a smooth horizontal table, pulled by a constant horizontal force $F=4~\text{N}$, with the mass of its spring equal to the mass of its casing.
The physical system is a television image transmission channel.
A passenger of mass $m$ moves along a curved path of radius $R$ with speed $v$ during a turn.
Consider a thin metal plate of area $s$ coated with a layer of liquid dielectric of density $\rho$ and relative permittivity $\varepsilon$, where the thickness of the layer is much smaller than the li…
A refrigerator operates for a time interval $\tau$ while consuming electrical power $W$.
A point charge $q = 10^{-8},\text{C}$ is uniformly distributed along a circular arc of radius $R = 1,\text{cm} = 10^{-2},\text{m}$.