Two equal positive charges are separated by d. Then one of the charges is replaced by a negative charge of the same magnitude. Take the potential at infinity to be zero. In which situation is the potential higher midway between the charges; is this value of potential zero?
a. the first situation; no
c. the second situation; no
b. the first situation; yes
d. the second situation; yes
A
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A charge of 12 C passes through an electroplating apparatus in 2.0 min. What is the average current in the apparatus?
A) 0.10 A B) 0.60 A C) 1.0 A D) 6.0 A
Which of the following systems cannot be analyzed as a visual binary?
A) Binary stars that are separately visible in a telescope B) Binary stars that are about 2 AU apart C) Binary star systems having orbital periods of hundreds or thousands of years D) Binary stars orbiting so close to each other that they are not visible as separate stars
Pluto and Neptune orbit in _______________ with each other so they never come close together
Fill in the blank(s) with correct word
The place where two streams join together is called
What will be an ideal response?