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The conferences are usually held twice a year, at the end of the first quarter and at the end of the third quarter, with each meeting lasting about 15–20 minutes. The parents typically choose the time that is best for them, and the teacher schedules the conference accordingly. The specific practices vary within school districts. [2]
The 440-yard dash, or quarter-mile race, is a sprint race in track and field competitions. In many countries, athletes compete in the 440 yard dash (402.336 m) – which corresponds to a quarter mile. Many athletic tracks are 440 yards per lap. In the 19th century it was thought of as a middle distance race. [1]
In physics and mechanics, torque is the rotational analogue of linear force. [1] It is also referred to as the moment of force (also abbreviated to moment ). The symbol for torque is typically τ {\displaystyle {\boldsymbol {\tau }}} , the lowercase Greek letter tau .
Quarter-mile or 1 ⁄ 4 mile may refer to: A dragstrip competition or vehicle test in motorsport, where cars or motorcycles compete for the shortest time from a standing start to the end of a straight 1 ⁄ 4 mile (0.40 km) track; The 440-yard dash, a sprint footrace in track and field competition on a 440 yards (1,320 ft; 400 m; 0.25 mi) oval
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At stall, the torque converter can produce maximum torque multiplication if sufficient input power is applied (the resulting multiplication is called the stall ratio). The stall phase actually lasts for a brief period when the load (e.g., vehicle) initially starts to move, as there will be a very large difference between pump and turbine speed.
After setting the national high school record in the mile, Jim Ryun set the world record in 1966 and then again in 1967, when he ran 3:51.1. Ryun was 19 at the time, making him the youngest world record holder in the mile to date. His record stood for nine years. [4] Ryun competed in the 1964, 1968 and 1972 Olympic games.