Question

2. Доведіть, що 1 B.A.c=1 Дж. Помогите

Answer 1

Ответ:

U=A\q

l=q\t

q=lt=^U=A/lt=^1Дж=1Ва

Answer 2

1 B.A.c (British thermal unit, abbreviated as Btu or B.T.U.) is a unit of energy commonly used in the United States and the United Kingdom for measuring heat energy. 1 Btu is approximately equal to 1.055 kilojoules (kJ) or 0.293 watt-hours (Wh). The International System of Units (SI) uses the joule (J) as the standard unit of energy.

To show that 1 Btu (B.A.c) is approximately equal to 1 joule (J), we need to establish the conversion factor:

1 Btu ≈ 1.055 kilojoules (kJ) ≈ 1055 joules (J)

We know that: 1 kilojoule (kJ) = 1000 joules (J)

So: 1.055 kilojoules (kJ) ≈ 1.055 * 1000 joules (J) ≈ 1055 joules (J)

Therefore, we can approximate 1 Btu (British thermal unit) as 1055 joules (J), which is very close to the standard conversion factor of 1 Btu ≈ 1055 joules.