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
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.
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What will be an ideal response?