Online test 11 : 8,05,2020 Tuzuvchi: r a h m o n a L i Nazirov

Online test 11 : 8,05,2020 Tuzuvchi: R a h m o n a l i Nazirov

FIZIKA
1. . Suv to‘la chelak vertikal tekislikda 2 m diametrli aylana bilan aylantirilmoqda. Qanday eng katta aylanish davrida chelakdagi suv to‘kilmaydi.(s)

A) 1 B) 3,14 C) 2,5 D) 2

2. . Radiusi 2 mm bo’lgan naychadan uzi­layotgan kerosin tomchisining massasini (mg) toping. Kerosin uchun 24 mN/m.
A) 14 B) 12 C) 20 D) 30

3. . Blok tros orqali shiftga osib qo’yilgan. Blok orqali o’tkazilgan ipning uchlariga 2 va 3 kg massali yuklar osiladi.Trosning taranglik kuchini (N) toping. g=10 m/s².

A) 24 B ) 50 C ) 48 D) 30