An object of mass m and moment of inertia I has rotational kinetic energy KER. Its angular momentum is:
a. 0.5 I/m. b. (2 IKER)1/2.
c. (2 mKER)1/2 d. not given.
b
You might also like to view...
The diagram below shows three approximate locations of the sun along the western horizon. Which number indicates the location of the sun at sunset on June 21 for an observer at a latitude of 77° N?
a. 1
b. 2
c. 3
d. The sun will not rise for an observer in the northern hemisphere.
e. The sun will not set on June 21 at this latitude.
Equation of Traveling Waves: Four waves are described by the following equations, where distances are measured in meters and times in seconds.I. y = 0.12 cos(3x - 21t)II. y = 0.15 sin(6x + 42t)III. y = 0.13 cos(6x + 21t)IV. y = -0.23 sin(3x - 42t)Which of these waves have the same period?
A. I and III, and also II and IV B. I and IV, and also II and III C. I and II, and also III and IV D. All of them have the same period. E. They all have different periods.
Another name for glucose is
a. dextrose. b. malt sugar. c. sucrose. d. lactose.
An infinite plane of charge with 
is tilted at a 45° angle to the vertical direction as shown below. The potential difference, VB ? VA in volts, between points A and B, a 4.50 m distance apart, is
?
a.
?7.06.
b.
?9.98.
c.
?14.11.
d.
+7.06.
e.
+9.98.