Khi đặt hiệu điện thế 15V vào 2 đầu dây dẫn thì dòng điện chạy qua nó có cường độ là 5mA. Muốn dòng điện chạy qua dây dẫn đó có cường độ giảm đi 3mA thì hiệu điện thế giữa hai đầu dây dẫn là bao nhiêu

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm

The electric potential v is constant everywhere within a certain region of space. which statement below is true? the choices are: the electric field is also constant (but not zero) within the region. a charged particle placed within the region will experience an electric force. the electric field is zero everywhere within the region. the electric field varies from place to place within the region.

Abird flies directly overhead from where you stand at an altitude of 300.0 m and at a speed horizontal to the ground of 20.0 m/s. the bird has a mass of 2.0 kg. the radius vector to the bird makes an angle \thetaθ with respect to the ground. the radius vector to the bird and its momentum vector lie in the xyxy-plane. what is the bird’s angular momentum about the point where you are standing?