When rolled down a mountainside at 7. 0 m/s, the horizontal component of its velocity vector was 1. 8 m/s. What was the angle of the mountain surface above the horizontal?.

The material that keeps its new shape after it is stretched is called?

If angle "a" is 25°, angle "b" is: a) equal to angle c b) less than angle c c) greater than angle c

The space between two 15-in.-long concentric cylinders is filled with glycerin (viscosity = 8.5 × 10-3 lb·s/ft2). the inner cylinder has a radius of 1 in. and the gap width between cylinders is 0.1 in. determine (a) the torque and (b) the power required to rotate the inner cylinder at 180 rev/min. the outer cylinder is fixed. assume the velocity distribution in the gap to be linear.