Hello can I have some help here please. Can you write on a sheet of paper and upload it please

4. Find the unit tangent vector & principle unit normal vectors for r(t) = (6sin 2)i + (6cos2)j+(51)k . 6. Find the limit, if it exists, or show that the limit does not exist. 8x2 y 2 a) lim ( x,y) ( 0.0) x*+ y* b) lim xy 5. A stunt flier is moving at 30m/s parallel to the flat ground 125m below. How large must the horizontal distance x from the plane to the target be if a sack of flour released from the plane is to strike a target? Math336.Assignment2.F2023... Q Page 5 of 5 8. A ball is thrown with a speed of 30 m/s at an angle of 42 degrees above the horizontal. It lands on the roof of a building at a point displaced 24 m horizontally from the throwing point. How high above the throwing point is the roof? (Ignoring air resistance) 7. Find the equation of the circle of curvature for the parabola y = (1/2)x at the point (1, "). 9. A bomb is dropped (initial speed zero) from a helicopter hovering 800 meters above the ground. A projectile is fired from a gun located on the ground 800 meters west of the point directly beneath the helicopter. The projectile is supposed to hit the bomb at a height of exactly 400 meters above the ground. If the projectile is fired at the same instant the bomb is dropped, what should be its initial velocity and angle of elevation