Which of the features is seen on the surface of Europa?
A) impact craters
B) giant cracks
C) water ice
D) all of these are seen
D
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A 1.5-kg object has a velocity of 
m/s at t = 0. It is accelerated at a constant rate for five seconds after which it has a velocity of 
m/s. What is the magnitude of the resultant force acting on the object during this time interval?
A. 3.8 N B. 3.2 N C. 2.8 N D. 4.3 N E. 4.6 N
An RLC series circuit has R = 100 ohms, C = 25 ?F, and L = 0.16 H. For what angular frequency of an AC voltage is the current flow maximum?
A. 251 rad/s B. 500 rad/s C. 757 rad/s D. 884 rad/s E. 79.6 rad/s
A heat engine has an efficiency of 35.0% and receives 150 J of heat per cycle. (a) How much work does it perform in each cycle? (b) How much heat does it exhaust in each cycle?
What will be an ideal response?
The apparent path that the Sun traces annually along the celestial sphere is called the
a. ecliptic. b. heliosphere. c. solstice circle. d. celestial prime meridian.