Express the angular speed of 60 revolutions per second in radians per second

120π or 377.00 radians per second ( to nearest hundredth).

Step-by-step explanation:

The number of radians in one revolution = 2π, so 60 revs per second =

60 * 2π = 120π radians per second.  

10

Step-by-step explanation:

Altitude = 8

The half of base = 6

By pythagoras theorem:

x² = 8² + 6²

x² = 64 + 36

x² = 100

x = 10