A force on an object is given by F(x) = ( -4.00 N/m)x + ( 2.00 N/m3)x3. What is the change in potential energy in moving from x = 1.00 m to x = 2.00 m?
A)
10.0 J
B)
-1.50 J
C)
-10.0 J
D)
+1.50 J
E)
12.0 J
B
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Work-Energy Theorem: A 1000-kg car experiences a net force of 9500 N while slowing down from 30 m/s to 15.9 m/s. How far does it travel while slowing down?
A. 34 m B. 31 m C. 37 m D. 41 m
A 25-m wire of diameter 0.30 mm draws 0.499 A when connected across a 3.0-V potential difference. (a) What is the resistance of the wire? (b) What is the resistivity of the material from which the wire is made?
What will be an ideal response?
The moon revolves around the earth once every __________ days
Fill in the blank(s) with the appropriate word(s).
A toroid is made of 2000 turns of wire of radius 2.00 cm formed into a donut-shape of inner radius 10.0 cm and outer radius 14.0 cm. When a 30.0-A current is present in the toroid, the magnetic field at a distance of 11.0 cm from the center of the toroid is
A. 0.0857 T. B. 0.109 T. C. 0.120 T. D. 0.600 T. E. 0.685 T.