A jet of water (20◦C) impinges on a turbine blade that is translating at constant velocityU= 5 m/s. The velocity of the jet relative to the fixed nozzle of 12 cm2cross section isVj= 25 m/s. The blade turns the jet so that it makes an angleθ= 150◦measured counterclockwise from the positive x-axis. Taking into account the weight of the 150 N blade, butneglecting the weight of water on the blade, calculate:

(a) the horizontal and
(b) vertical components of force required to maintain constant blade speed.

When does your body conduct current more readily?

An charge with mass m and charge q is emitted from the origin, (x,y)=(0,0). a large, flat screen is located at x=l. there is a target on the screen at y position y(h), where y(h) > 0. in this problem, you will examine two different ways that the charge might hit the target. ignore gravity in this problem. 1.assume that the charge is emitted with velocity v(0) in the positive x direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive y direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l. 2.now assume that the charge is emitted with velocity v(0) in the positive y direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive x direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l.

What is the mass of the water that is being heated? it requires 2,500 joules to raise a certain amount of water (c = 4.186 jig c) from 20.0°c to 60.0°c. o 159 o 40 g o 63 g o 80 g