You ride a motor scooter 8 km in 15 minutes. Your [average] speed is
A) 16 km/hr. B) 2 km/hr. C) 4 km/hr. D) 32 km/hr. E) 48 km/hr.
D
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In stress relaxation, the elastic strain rate is equal to _________the plastic strain rate.
Fill in the blank(s) with the appropriate word(s).
A planet speeds up in its orbit as it gets closer to the sun because of
A) the torque exerted on the planet by the sun. B) conservation of energy. C) conservation of momentum. D) conservation of angular momentum. E) inertia.
Instructions: On occasion, the notation 
= [A, ?] will be a shorthand notation for 
.
?
Exhibit 3-3
The vectors 
and 
are shown below.
?
?
Use this exhibit to answer the following question(s).
Refer to Exhibit 3-3. Which diagram below correctly represents 
?
A.
B.
C.
D.
E.
What is SETI? How is it being done?
What will be an ideal response?