An object is moving in a circular path with a radius of 4.00 m. If the object moves through an angle of 45.0 degrees, then the angle is
A. 0.25 radians.
B. 0.53 radians.
C. 0.79 radians.
D. 1.02 radians.
E. 1.44 radians.
C. 0.79 radians.
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Where did comets that are now in the Kuiper belt originally form?
A) in the asteroid belt B) inside Jupiter's orbit C) between the orbits of Jupiter and Neptune D) near the distance at which they orbit today E) in the Oort cloud
Five children are pushing on a snowball; each is pushing with a force of 10.0 N. Each is pushing at an angle of 45
relative to his neighbor. What is the net push on the ball?
A. 0 N B. 24.1 N C. 27.1 N D. 17 N E. 50 N
Electricity from a AAA battery costs the consumer about
A. 1 ¢ per kilowatt-hour B. 10¢ per kilowatt-hour C. $1 per kilowatt-hour D. $1000 per kilowatt-hour
The Milky Way is part of I. a poor cluster. II. a rich cluster. III. the Virgo Cluster. IV. the Local Group
a. I and III b. I and IV c. II and III d. II and IV e. just III