As shown in the diagram, a vertical pole and horizontal arm move in uniform circular motion about the axis of the pole. a ball of mass 5.0 kg is suspended by two wires from the horizontal arm. the linear speed of the ball equals 2.1 m/s. what is the tension in wire 2?

45 n

28 n

51 n

34 n

40 n

Which accurately compares concave and convex lenses?

Question part points submissions used suppose that 2 j of work is needed to stretch a spring from its natural length of 26 cm to a length of 36 cm. (a) how much work is needed to stretch the spring from 28 cm to 32 cm? (round your answer to two decimal places.)

Two students, each riding bicycles, start from the same apartment building and ride to the same building on campus, but each takes a different route. the first student rides 1100 m due east and then turns due north and travels another 1430 m before arriving at the destination. the second student heads due north for 1930 m and then turns and heads directly toward the destination.at the turning point, how far is the second student from the destination?