A long cylinder (radius = 3.0 cm) is filled with a nonconducting material which carries a uniform charge density of 1.3 ?C/m3 . Determine the electric flux through a spherical surface (radius = 2.0 cm) which has a point on the axis of the cylinder as its center
a. 5.7 N / m2/C
b. 4.9 N / m2/C
c. 6.4 N / m2/C
d. 7.2 N / m2/C
e. 15 N / m2/C
b
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What is the resistance of 1.0 m of a solid cylindrical metal cable having a diameter of 0.40 inches and a resistivity of 1.68 × 10-8 ? ? m?
A) 0.00012 ? B) 0.00021 ? C) 0.0012 ? D) 0.0021 ?
In 1998 came the discovery of ________, which seems to overwhelm even gravity and all the dark matter in the final fate of the cosmos
Fill in the blank(s) with correct word
The coefficients of static and kinetic friction between a 3.0-kg box and a horizontal desktop are 0.40 and 0.30, respectively. What is the force of friction that the desktop exerts on the box when a 15-N horizontal push is exerted on the box?
A) 12 N B) 8.8 N C) 15 N D) 6.0 N E) 4.5 N