A block of mass m=1.8 kg slides along the inside of a hemispherical bowl of radius r=0.8 m. When the block is at an angle of 65 degrees above the lowest point it is sliding down with a speed of 3 m/s and is speeding up at a rate of 5 m/s^2. At this point find
a.) the normal force on the block by the bowl,
b.) the kinetic friction force on the block by the bowl and
c.) the coefficient of friction between the block and the bowl.