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A plane intercepts the coordinate axis at (4,6,10). What are the Miller indices for this plane?

(A) (2,3,5)

(B) (15,10,6)

(C) (-4,-6,-10)

(D) (10,6,4)

A spaceship leaves the space station with an acceleration of 15 ft/s2. After 3 minutes the engines turn off and the acceleration is 0 ft/s2. What is the average velocity of the spaceship?

（A）81,100 ft/s （B） 1,350 ft/s （C） 243,000 ft/s （D） 2,700 ft/s

Correct Answer: B

A copper ball that is 1.5 m in diameter has a temperature of 100C. The environment is at 0C. If the emissivity of copper is 0.15 how much power is radiated by the copper ball?

(A) 6 w (B) 5,264 W (C) 500 W (D) 1,164 W

Correct Answer: D

A tube that is 10 feet long and 2 feet in diameter is placed in an air stream. The flow of the air is at a speed of 15 ft/s and is perpendicular to the long axis of the tube. If the coefficient of drag is 1.3 and the density of air is 0.075 lbm/ft³ What is the drag on the cylinder?

(A) 150 lbf (B) 200 lbf (C) 320 lbf (D) 220 lbf

Correct Answer: D