perpetual motion
In physics, the letter "c" typically stands for the speed of light in a vacuum, which is approximately 299,792,458 meters per second.
pm stands for picometers in an atomic radius measurement. It is a unit of length equal to one trillionth of a meter, commonly used in atomic scales due to their extremely small size.
In physics, "t" typically represents time. It is a variable used to measure the duration of events or describe the evolution of systems over time.
Velocity/speed.
In physics, the symbol "omega" () represents angular velocity or frequency. It is commonly used to denote the rate of rotation or oscillation of an object.
post meridian
post meridium
Post Morning
It stands for post meridiem which means "after midday" in Latin
PM stands for Personal Message. In Twitter this is a direct message.
Post Meridian
antemeridiem and postmeridiem
Prime Meridian
petite medium
post meridian
Plus-minus
Prime Minister