Physics, 24.07.2021 08:50 eysahvdtuj
Từ địa điểm A đến địa điểm B, một ô tô chuyển động đều theo hai giải đoạn : Giai đoạn 1: từ A đến B với vận tốc v1 m 35 km/h. Giai đoạn 2: từ B về A với vận tốc v = 45 km/h. Xác định vận tốc trung bình của chuyển động cả đi và về
Answers: 1
Physics, 21.06.2019 14:50
Ingrid wrote the hypothesis below. if the temperature of a liquid increases, the density of the liquid decreases because the particles move farther apart. what are the variables in her hypothesis?
Answers: 3
Physics, 21.06.2019 20:20
How much work would a child do while puling a 12-kg wagon a distance of 3m with a 22 n force directed 30 degrees with respect to the horizontal? (a) 82j (b) 52j (c) 109j (d) 95j
Answers: 2
Physics, 22.06.2019 12:10
Light traveling in water, nwater = 1.33, strikes a plastic block at an angle of incidence of 51.4°; part of the beam is reflected and part is refracted. if the index of refraction of the plastic is 2.0, what is the angle made by the reflected and refracted beams?
Answers: 2
Physics, 22.06.2019 23:40
Consider a u-tube whose arms are open to the atmosphere. now equal volumes of water and light oil (ρ = 49.3 lbm/ft3) are poured from different arms. a person blows from the oil side of the u-tube until the contact surface of the two fluids moves to the bottom of the u-tube, and therefore, the liquid levels in the two arms are the same. if the fluid height in each arm is 30 in, determine the gage pressure exerted by the person on the oil by blowing.
Answers: 3
Từ địa điểm A đến địa điểm B, một ô tô chuyển động đều theo hai giải
đoạn : Giai đoạn 1: từ A đến B...
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