Physics, 12.09.2021 09:10 stinematesa
Cho hai bóng đèn Đ1 và Đ2 mắc nối tiếp trong đó apekế có số chỉ 0,35A . HĐT giữa hai đầu đèn là Đ 1
là U12 = 3,2V và HĐT giữa hai đầu đèn DD là U23 =2,8V .Hãy
a] vẽ sơ đồ mạch điện
b] cho biết cường độ dòng điện đi qua đèn Đ 1 và đèn Đ 2 là bao nhiêu
c] Tính HĐT U13 giưa hai đầu ngoài của hai đèn Đ 1 và Đ 2
Answers: 3
Physics, 22.06.2019 14:30
Exercise 2. find the wavelength of a photon emitted when an electron jumps from the n = 3 energy level down to the n = 2 energy level. where is this photon in the electromagnetic spectrum?
Answers: 3
Physics, 22.06.2019 14:40
Asolid cylinder and a cylindrical shell have the same mass, same radius, and turn on frictionless, horizontal axles. the cylindrical shell has light-weight spokes connecting the shell to the axle. a rope is wrapped around each cylinder and tied to blocks of equal masses that are held the same height above the ground. both blocks are released simultaneously. the ropes do not slip. which block hits the ground first? or is it a tie?
Answers: 3
Physics, 23.06.2019 03:00
Ablock of mass m slides on a horizontal frictionless table with an initial speed v0 . it then compresses a spring of force constant k and is brought to rest. the acceleration of gravity is 9.8 m/s2 . how much is the spring compressed x from its natural length?
Answers: 3
Physics, 23.06.2019 03:00
The law of entropy can also be called the law of increasing disorder, but this law seems to contradict the existence of living organisms that are able to organize chemicals into organic molecules. prepare for a class debate on the validity of the following arguments: a. living things are not subject to the laws of thermodynamics. b. the increase in the universe's entropy due to life processes is greater than the decrease in entropy within a living organism.
Answers: 2
Cho hai bóng đèn Đ1 và Đ2 mắc nối tiếp trong đó apekế có số chỉ 0,35A . HĐT giữa hai đầu đèn là Đ 1...
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