Water from a stationary nozzle impinges on a moving vane with turning angle θ = 120°. the vane moves away from the nozzle with constant speed, u = 10 m/s, and receives a jet that leaves the nozzle with speed v = 30 m/s. the nozzle has an exit area of 0: 004 m^2.
find the force that must be applied to maintain the vane speed constant.

The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m^2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute?

The particles that are found in the nucleus of an atom are

Along wire carrying a 4.2 a current perpendicular to the xy-plane intersects the x-axis at x=−1.7cm. a second, parallel wire carrying a 3.0 a current intersects the x-axis at x=+1.7cm. part a at what point on the x-axis is the magnetic field zero if the two currents are in the same direction? express your answer to two significant figures and include the appropriate units.