Solve the problem.A spring on a horizontal surface can be stretched and held 0.5 m from its equilibrium position with a force of 45 N. How much work is done in stretching the spring 2 m from its equilibrium position?
A. 360 J
B. 45 J
C. 180 J
D. 90 J
Answer: C
Mathematics
You might also like to view...
Convert the units using unit fractions.7 ft = 
in.
A. 28 B. 252 C. 21 D. 84
Mathematics
Solve the problem.The price p and the quantity x sold of a certain product obey the demand equation p = - 
x + 160, 0 ? x ? 480.What quantity x maximizes revenue? What is the maximum revenue?
A. 360; $14,400 B. 480; $19,200 C. 120; $14,400 D. 240; $19,200
Mathematics
Let X be a point obviously outside the figure. Draw 
. How many times does it cross the curve?
?
?
It will cross the curve an __________ (even, odd) number of times.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Simplify. Assume that all variables represent positive real numbers.8
+ 6
A. 
B. 
C. 8
+ 6
D. 
Mathematics