The longer a given diameter of wire, the higher its resistance
Indicate whether the statement is true or false
TRUE
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A calculus book weighing 20 N rests on the floor of a classroom. The reaction to the force of the floor on the book is a force of
A. 9.8 m/s2 exerted by the Earth on the book. B. 2.04 kg exerted by the floor on the book. C. 20 N exerted by the book on the Earth. D. 0 N. E. 20 N exerted by the book on the floor.
When a fat is treated with NaOH, the ester bonds break to form glycerol and the sodium salts of fatty acids, which are known as ______________
Fill in the blank(s) with correct word
The position of an air-track cart that is oscillating on a spring is given by x = (12.4 cm) cos[(6.35s-1)t]. At what value of t after t = 0 s is the cart first located at x = 8.47 cm?
A) 4.34 s B) 0.108 s C) 0.129 s D) 7.39 s E) 7.75 s
One of the larger problems in municipal recycling programs is
a. public awareness b. finding markets for materials c. net energy used in recycled material preparation d. declining number of landfills