A charge of 1.0 × 10-6 ?C is located inside a sphere, 1.25 cm from its center. What is the electric flux through the sphere due to this charge? (?0 = 8.85 × 10-12 C2/N ? m2)
A) 0.11 N ? m2/C
B) 8.9 N ? m2/C
C) 0.028? N ? m2/C
D) It cannot be determined without knowing the radius of the sphere.
Answer: A
You might also like to view...
A film of index of refraction n1 coats a surface with index of refraction n2. When n1>n2, the condition for destructive interference for reflected monochromatic light of wavelength ? in air is
A.
.B.
.C.
.D.
.E.
.Regarding the charges of the electron, proton and neutron:
A) these objects are charged only when they reside in an ionized atom; otherwise, all three are uncharged. B) the proton has a positive charge, the electron has a much smaller negative charge, and the neutron has no charge. C) the proton has a positive charge, the neutron has a negative charge whose strength is equal to that of the proton's charge, and the electron has no charge. D) the electron has a negative charge, the proton has a positive charge, and the neutron has a charge that can be positive or negative or zero depending on the ionization of the atom in which it resides. E) the proton has a positive charge, the electron has a negative charge whose strength is equal to the strength of the proton's charge, and the neutron has no charge.
A 90-kg halfback running north with a speed of 10 m/s is tackled by a 120-kg opponent running south at 5.0 m/s. The collision is perfectly inelastic. Compute the velocity of the two players just after the tackle
a. 1.4 m/s south c. 2.8 m/s north b. 2.8 m/s south d. 1.4 m/s north
Compared to Earth, the Moon lacks a hydrosphere, atmosphere, and a magnetosphere
Indicate whether the statement is true or false