Physics, 28.07.2021 06:00 sierraaasifuent
Hãy Xác định góc giới hạn phản xạ toàn phần khi chiếu tia sáng tới từ kim cương có chiến suất 2.42 qua các môi trường: a không khí (nkk=1) b. nước(Nnc= 1.33) c thủy tinh(N\pi=1.42)
Answers: 1
Physics, 21.06.2019 17:30
Awheel rotates without friction about a stationary horizontal axis at the center of the wheel. a constant tangential force equal to 82.0 n is applied to the rim of the wheel. the wheel has radius 0.150 m . starting from rest, the wheel has an angular speed of 12.8 rev/s after 3.88 s. what is the moment of inertia of the wheel?
Answers: 3
Physics, 21.06.2019 19:10
What happens to light waves from a star as the star moves away from earth?
Answers: 3
Physics, 21.06.2019 20:20
Suppose that a comet that was seen in 563 a.d. by chinese astronomers was spotted again in year 1951. assume the time between observations is the period of the comet and take its eccentricity as 0.986. what are (a) the semimajor axis of the comet's orbit and (b) its greatest distance from the sun?
Answers: 1
Physics, 22.06.2019 14:30
Two carts, one of mass 2m and one of mass m, approach each other with the same speed, v. when the carts collide, they hook together. assume that positive momentum is to the right. which graph best represents the momentum of both carts over time, before and after the collision?
Answers: 3
Hãy Xác định góc giới hạn phản xạ toàn phần khi chiếu tia sáng tới từ kim cương có chiến suất 2.42 q...
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