Physics, 25.01.2020 07:31, Machuco127
After a parallel-plate capacitor has been fully charged by a battery, the battery is disconnected and the plate separation is increased. which of the following statements is correct? explain in detail why the staement is correct!
a) the energy stored in the capacitor increases.
b) the charge on the plates increases.
c) the charge on the plates decreases.
d) the potential difference between the plated decreases.
e) the energy stored in the capacitor decreases.
Answers: 3
Physics, 22.06.2019 22:50, mdg5605
The illuminance of a surface varies inversely with the square of its distance from the light source. if the illuminance of a surface is 120 lumens per square meter when its distance from a certain light source is 6 meters, by how many meters should the distance of the surface from the source be increased to reduce its illuminance to 30 lumens per square meter?
Answers: 3
Physics, 22.06.2019 23:30, gymnastlyfe123
The power exerted by a muscle is the product of the force exerted and the velocity of contraction. the area of which of these shaded regions represents the power exerted while a weight is lifted at maximum speed?
Answers: 2
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