pls help with physics, will rate you in return if answers are correct ty!!!

Instructions: Solve, use the value of g = 9.80 nits\"? 1. At the entrance point in a pipeline, the water's speed is 25.5 [m/s] and the gauge pressure is 3.50 x 10'1 [Pa]. Find the gauge pressure at the exit point, 10.0 [m] lower than the entrance point, if the water here is owing at 8.81 [m/s]. 2_ A wheel is spinning with an initial angular velocity of 0.750 [rev / s] and a constant angular acceleration of 1.20 [rev J{32]. What is its angular velocity after just 1 revolution? 3. A circular pulley of radius 0.35 [m] can rotate on frictionless hearing. A massless string passes around the pulley and is attached to a block with mass 10.0 [kg]. The block is then dropped from a height of 4.00 [m] from the ground. If the speed of the block right before it hits 10 kg the ground is 9.0 [m/s], what is the angular acceleration I? of the pulley. 4-00 m ,l, 4- Consider a harmonic oscillator whose elastic potential energy is equal to its kinetic energy. Given that its angular frequency is w and its amplitude .4. what is the magnitude of its velocity