V=15 V C =3 UF
I R=4kohm
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a
The opposite figure shows a part of a circuit in which
the current intensity that passes through it at an instant
is 2 mA, when the accumulated charge on any one of
the plates of the capacitor equals 12 uC, so the value
the potential difference between the two points a and b
at this instant
(b) 19 V
a) 3 V
c) 23 V
(d 27 V
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Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.

A2-kg bowling ball is 2.5 meters off the ground on a post when it falls. just before it reaches the ground, it is traveling 7 m/s. assuming that there is no air resistance, which statement is true?

Which is not an example of how an object gains elastic potential energy by stretching? a. jumping on a pogo stick b. pulling on a rubber band c. jumping on a trampoline