A stretched string is observed to have three equal segments in a standing wave driven at a frequency ...

A stretched string is observed to have three equal segments in a standing wave driven at a frequency of 480. Hz. What driving frequency will set up a standing wave with four equal segments?

What will be an ideal response?

Question 2

If the newly discovered planet of Krypton has 100. times the mass of the Earth and 100. times the diameter of the Earth, what would be the period of a low orbiting satellite around Krypton?

A) 1.5 hours
B) 1.5 103 hours
C) 15. hours
D) 1.5 102 hours
E) 0.15 hours

Question 3

A parallel plate capacitor is constructed with plate area of 0.40 m2 and a plate separation of 0.10 mm. How much charge is stored on it when it is charged to a potential difference of 12 V?

What will be an ideal response?

Question 4

Consider two current-carrying circular loops. Both are made from one strand of wire and both carry the same current, but one has twice the radius of the other.

Compared to the magnetic moment of the smaller loop, the magnetic moment of the larger loop is A) 8 times stronger.
B) 16 times stronger.
C) 4 times stronger.
D) 2 times stronger.
E) times stronger.

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A stretched string is observed to have three equal segments in a standing wave driven at a frequency ...

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