A cola drink is a good example of
a. a compound.
b. a heterogeneous mixture.
c. a homogeneous mixture.
d. an element.
c
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A __________ interacts via the strong interaction
Fill in the blank(s) with correct word
An object 4 cm high is placed 15 cm in front of a convex mirror with a focal length of ?10 cm. What is the image position (in cm)?
a. ?8 b. ?4 c. ?2 d. ?6 e. 30
The isotope 14C cannot be used in dating old samples of which of the following?
a. a bronze implement from a cave b. charcoal from a fire c. a bone buried in mud d. All of these choices can be dated using 14C.
A 50-gram superball traveling at 25.0 m/s is bounced off a brick wall and rebounds at 22.0 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 3.50 ms, what is the average acceleration of the ball during this time interval?