The figure shows the distance versus time graph of an object
The acceleration of the moving object is
a.
zero.
b.
constant.
c.
increasing.
d.
decreasing.
e.
not determinable.
b
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The cooling effect inside a refrigerator is produced by
A) an electric motor that converts electrical energy to internal energy. B) compressing the refrigeration gas. C) vaporizing the refrigeration liquid. D) proper insulation. E) exchanging warmer air with colder air.
It makes little difference in making a prediction whether a linear or an exponential growth in some quantity is assumed
What will be an ideal response?
In the metric system, a penny might be called a(n) ______________ dollar
Fill in the blank(s) with correct word
A fish is 80 cm below the surface of a pond. What is the apparent depth (in cm) when viewed from a position almost directly above the fish? (For water, n = 1.33.)
a. 50 b. 60 c. 40 d. 70 e. 110