16. 2 mol gaz 27°C temperaturada 100 kPa bosimga ega bo'lishi uchun qancha hajmni egallashi kerak ( mº)?
17. Gaz hajmining o'zgarishi bilan uning bosimi orasidagi ko'paytma qanday ataladi ?
18. Avogadro doimiysibilan Boltsmandoimiysiningko'paytma qanday ataladi
19. 1 kg massali modda temperaturasini 1 K ga oshirish uchun unga beriladigan issiqlik m
-hu moddaning Solishtirmia isliglik Sizini
deb atalad
20. 113°C temperaturani Khiisobida ifodalang
160.
a1 = a2 = a3, т.к. нить нерастяжимая
T01 = T02 = T0 по 3 з. Н.
T2 = T3 = T по 3 з. Н.
OX (1): T0 - um1g - T = m1a
OX (2): T - um2g = m2a
OY (3): m0g - T0 = m0a
(1) + (3):
-um1g - T + m0g = a (m1 + m0)
с учетом силы натяжения T = m2a + um2g из (2):
-um1g - m2a - um2g + m0g = a (m1 + m0)
a (m0 + m1 + m2) = m0g - um1g - um2g
a = (m0g - ug (m1 + m2)) / (m0 + m1 + m2)
a = g (m0 - u (m1 + m2)) / (m0 + m1 + m2) (!)
2.
с учетом формулы ускорения в (2):
T - um2g = m2g (m0 - u (m1 + m2)) / (m0 + m1 + m2)
T = m2g (m0 + u (1 - m1 + m2)) / (m0 + m1 + m2) (!)