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Since the atmosphere of the Earth has a mass of about 5.14 × 10 18 kilograms (1.133 × 10 19 lb), [24] the mass of 3 He in the Earth's atmosphere is the product of these numbers, or about 37,000 tonnes (36,000 long tons; 41,000 short tons) of 3 He. (In fact the effective figure is ten times smaller, since the above ppm are ppmv and not ppmw.
Helium-2, 2 He, is extremely unstable. Its nucleus, a diproton, consists of two protons with no neutrons.According to theoretical calculations, it would be much more stable (but still β + decay to deuterium) if the strong force were 2% greater. [18]
The Hyptec SSR (Chinese: 昊铂SSR; pinyin: Hàobó SSR) or previously Hyper SSR is an electric sports car to be produced by Chinese automobile manufacturer GAC Aion and sold under the Hyptec premium EV brand beginning in 2023. The Hyptec SSR will be the first production 2-door supercar by GAC.
Although grouped under the "M-Class" naming banner since the first launch, BMW, who sells M models such as the M3, objected to the car being badged "M" with the three-digit engine level afterwards (e.g. M 320).
The Standard Range version carries 2,976 cells arranged in 96 groups of 31. The Long Range version carries 4,416 cells arranged in 96 groups of 46, and weighs [177] 1,060 pounds (480 kg) in a 0.40 m³ volume; a density of 150 Wh/kg (540 kJ/kg). [178] [179] The car's onboard AC/DC converter is 11 kW. [180]
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A Japanese market exclusive B6 2.8/2 wagon was produced between 1996 and 1998. [26] In 1993, the 2.8/2 was replaced by the B6 3.0, following the introduction of the 3 litre S50 engine that was used in the new M3 models. Alpina models were now offered in convertible and touring form as well, rather than just in coupe and saloon models.
The Rolls-Royce Wraith was built in order to replace the earlier 2-door car model, the Rolls-Royce Phantom Coupé, built on the basis of the Rolls-Royce Ghost, unlike the earlier model which was based on the 7th Generation Rolls-Royce Phantom, the flagship car model of Rolls-Royce Motor cars until the arrival of the 8th Generation. It is the ...