Physics, 17.06.2021 14:00 anishivaturi123
: Cho ba điện tích q1 = q2 = q3 = q đặt tại ba đỉnh của một hình vuông. Nếu lực tương tác
giữa q1 và q2 là F12
và giữa q1 và q3 là F13
thì tỉ số độ lớn 12
13
F
F
là:
A. 2. B. 2 . C. 4. D. 3
Answers: 1
Physics, 21.06.2019 23:30
Classify the following soils according to the uscs classification system. provide appropriate uscs designations. a) this sample of well-graded gravel with sand was obtained from a large earthen dam in vancouver, canada. the sample has 73% fine to coarse sub-angular gravel, 25% fine to coarse sub-angular sand and 2% fines. the maximum size of the particles is 75 mm. the coefficient of curvature is 2.7, while the uniformity coefficient is 12.4. b) this dark brown and wet soil with a “strong organic odor” has 100% passing the no. 200 sieve. the liquid limit of the material is 32% when not dried and is 21% when oven-dried. the plastic index is 21% when not dried. c) this sand has 61% predominantly fine sand, 23% silty fines, and 16% fine sub-rounded gravel size. the maximum size is 20 mm. the liquid limit is 33% and the plastic limit is 27%. d) this soil has 74% fine to coarse sub-angular reddish sand and 26% organic and silty dark brown fines. the liquid limit is 37% when not dried and is 26% when oven dried. the plastic index is 6% when not dried.
Answers: 1
Physics, 22.06.2019 03:10
Athin plate moves between two parallel, horizontal, stationary flat surfaces at a constant velocity of v = 7.5 m/s. the two stationary surfaces are spaced 4 cm apart, and the medium between them is filled with oil whose viscosity is 0.9 n·s/m2. the part of the plate immersed in oil at any given time is 2 m long and 0.5 m wide. if the plate moves through the mid-plane between the surfaces, determine the force required to maintain this motion. what would your response be if the plate was 1 cm from the bottom surface (h2) and 3 cm from the top surface (h1)? if the plate moves through the mid-plane between the surfaces, the force required to maintain the motion will be n. if the plate was 1 cm from the bottom surface (h2) and 3 cm from the top (h1) surface, the force required to maintain the motion would be n.
Answers: 2
Physics, 22.06.2019 04:00
Amodel rocket with a mass of 0.212 kg is launched into the air with an initial speed of 84 m/s. how much kinetic energy will the rocket have at a height of 214 m? assume there is no wind resistance. 634 j 303 j
Answers: 2
: Cho ba điện tích q1 = q2 = q3 = q đặt tại ba đỉnh của một hình vuông. Nếu lực tương tác
giữa q1 v...
Social Studies, 16.10.2019 07:10
Mathematics, 16.10.2019 07:10
History, 16.10.2019 07:10
Mathematics, 16.10.2019 07:10
Mathematics, 16.10.2019 07:10
Physics, 16.10.2019 07:10
Mathematics, 16.10.2019 07:10
Biology, 16.10.2019 07:10
Chemistry, 16.10.2019 07:10
Social Studies, 16.10.2019 07:10
English, 16.10.2019 07:10
Mathematics, 16.10.2019 07:10