M
missc230
Guest
1). Suppose that a copper sleeve of inner radius 2.15 cm and outer radius 2.25 cm is to be cast. To eliminate bubbles and give high structural integrity, the centripetal acceleration of each bit of metal should be 145g. What rate of rotation is required? State the answer in revolutions per minute.
A sailboat is heading directly north at a speed of 20 knots (1 knot = 0.514 m/s). The wind is blowing towards the east with a speed of 17 knots.
(a) Determine the magnitude and direction of the wind velocity as measured on the boat.
(b) What is the component of the wind velocity in the direction parallel to the motion of the boat?
A sailboat is heading directly north at a speed of 20 knots (1 knot = 0.514 m/s). The wind is blowing towards the east with a speed of 17 knots.
(a) Determine the magnitude and direction of the wind velocity as measured on the boat.
(b) What is the component of the wind velocity in the direction parallel to the motion of the boat?