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T 25 is 298.15 K (= 25 °C = 77 °F), giving a value of 346.1 m/s (= 1 135.6 ft/s = 1246 km/h = 774.3 mph = 672.8 kn). In fact, assuming an ideal gas , the speed of sound c depends on temperature and composition only, not on the pressure or density (since these change in lockstep for a given temperature and cancel out).
Kinetic energy of a regulation (standard) baseball (5.1 oz / 145 g) [80] thrown at 93 mph / 150 km/h (MLB average pitch speed). [81] 1.5×10 2 - 3.6×10 2 J: Energy delivered by a biphasic external electric shock (defibrillation), usually during adult cardiopulmonary resuscitation for cardiac arrest. 3×10 2 J: Energy of a lethal dose of X-rays ...
By the mid-1970s, metric product labelling was introduced. In 1972, the provinces agreed to make all road signs metric by 1977. During the Labour Day weekend in 1977, every speed limit sign in the country was changed from mph to km/h. From the same time every new car sold had to have a speedometer that showed speed in km/h and distance in km ...
The four passenger GEM NEV uses 169 Wh/mi (199 mpg‑e; 10.5 kW⋅h/100 km), [28] which equates to 2.6 kWh/100 km per person when fully occupied, albeit at only 24 mph (39 km/h). The General Motors EV1 was rated in a test with a charging efficiency of 373 Wh-AC/mile or 23 kWh/100 km [ 67 ] approximately equivalent to 2.6 L/100 km (110 mpg ...
The Republic XP-47J reached 504 mph (811 km/h) in testing. The first ever record although not verified, was the 1903 Wright Flyer. It achieved 30 mph (48 km/h) during its first flight, a record by the only plane of controlled take-off and landing in existence. The Bleriot XI then reached 47 mph (76 km/h) in 1909. Fabric-covered biplanes of the ...
Pitch (typewriter), the number of characters and spaces in one inch (25.4 mm) of running text; Pitch, the distance between bits in a parallel integrated circuit element such as a register file; Dot pitch in images; Pin pitch, the distance between centers of pins in electronics packaging; Seat pitch, the spacing between seat rows in an aircraft
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Pitchers throw the ball with an underhand motion at speeds up to 77 miles per hour (124 km/h) for women. Monica Abbott set this record while playing with the Chicago Bandits in June of 2012. [3] The pitching style of fastpitch is different from that of slowpitch softball.