1400 rev/min is equivalent to which of the following?
A) 23.3 rad/s
B) 146.6 rad/s
C) 8796 rad/s
D) 40 rad/s
Ans: B) 146.6 rad/s
Convert revolution to radian.
1 revolution is equal to 2? radian
1minute equal to 60 second
1400 * 2?/60
146.6 radian /sec
You might also like to view...
Energy Levels: A hydrogen atom is excited to the n = 11 level. Its decay to the n = 7 level is detected in a photographic plate. What is the wavelength of the light photographed? (c = 3.00 × 108 m/s, 1 eV = 1.60 × 10-19 J, h = 6.626 × 10-34 J ? s)
A. 7510 nm B. 4670 nm C. 12,400 nm D. 4380 nm
Suppose we look at two distant galaxies: Galaxy 1 is twice as far away as Galaxy 2. In this case,
A) Galaxy 1 must be twice as big as Galaxy 2. B) we are seeing Galaxy 1 as it looked at an earlier time in the history of the universe than Galaxy 2. C) we are seeing Galaxy 1 as it looked at a later time in the history of the universe than Galaxy 2. D) Galaxy 2 must be twice as old as Galaxy 1.
The massive ram of a pile driver falling from rest strikes a pile with a speed that depends on the
A) initial height of the ram. B) initial potential energy of the ram. C) distance the ram falls. D) all of the above
If the index of refraction for a silica glass fiber is 1.46, which of the following of refraction indices for a coating would produce total internal reflection?
(a) 1.30 (b) 1.46 (c) 1.50 (d) 1.60