Physics, 14.06.2021 06:50 ashuntihouston14
Có ba điện tích q = - 2 uC, q2 = 5 uC và q3=3 uC đặt tại ba đỉnh của tam giác đều ABC cạnh a = 10cm. Chọn gốc điện thế ở vô cùng. Tính điện thế tại trọng tâm của tam giác.
Answers: 2
Physics, 21.06.2019 19:20, Obeilskzexal
Aferris wheel is a vertical, circular amusement ride with radius 9 m. riders sit on seats that swivel to remain horizontal. the ferris wheel rotates at a constant rate, going around once in 9 s. consider a rider whose mass is 56 kg. at the bottom of the ride, what is the perpendicular component of the rate of change of the rider's momentum? at the bottom of the ride, what is the vector force exerted by the seat on the rider?
Answers: 1
Physics, 21.06.2019 21:00, myalee1419
To protect all four receptacles on a branch circuit that surrounds a swimming pool, you would install which of the following configurations? a. gfci feed-through receptacle at the end of the load's circuit b. gfci-terminated receptacle at the beginning of the load's circuit c. gfci feed-through receptacle at the beginning of the load's circuit and the other receptacles connected to the load side of that receptacle d. gfci-terminated receptacle at each end of the load's circuit
Answers: 3
Physics, 22.06.2019 10:30, arigar
Aperson gives a shopping cart an initial push along a horizontal floor to get it moving, and then lets go. the cart travels forward along the floor, gradually slowing as it moves. consider the horizontal force(s) on the cart while it is moving forward and slowing. which of the following statements is correct? (a) both a forward and a backward force are acting on the cart, but the forward force is larger. (b) only a forward force is acting which diminishes with time. (c) both a forward and a backward force are acting on the cart, but the backward force is larger. (d) only a backward force is acting, no forward force.
Answers: 3
Có ba điện tích q = - 2 uC, q2 = 5 uC và q3=3 uC đặt tại ba đỉnh của tam giác đều ABC cạnh a = 10cm....
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