Physics, 26.09.2021 23:30 shadow29916
Cùng một lúc có hai vật chuyển động đều trên cùng một đường thẳng từ hai địa điểm cách nhau 25 km nếu chúng đi ngược chiều nhau thì sau 20 phút sẽ gặp nhau nếu chúng đi cùng chiều nhau thì sau 120 phút sẽ đuổi kịp nhau tốc độ của mỗi xe lần lượt là bao nhiêu
Answers: 1
Physics, 22.06.2019 09:40
Asatellite component is in the shape of a cube with 10cm edges, has an evenly distributed mass of 2 kg and one bolt hole at each of four corners. if the maximum predicted random vibration environment is 10 grms, what bolt size would be a good choice for restraint? what other factors might drive bolt size besides force/stress?
Answers: 2
Physics, 22.06.2019 11:30
With the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 1.90
Answers: 1
Physics, 22.06.2019 19:30
The ability to make things happen is also called a. heat b. force c. matter d. energy
Answers: 2
Cùng một lúc có hai vật chuyển động đều trên cùng một đường thẳng từ hai địa điểm cách nhau 25 km nế...
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