A pebble is dropped in a lake; and it produces ripples with a frequency of 0.50 Hz. When should a second pebble be dropped at the same place to produce destructive interference?

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Q: 9 and 10. Thanks.

A: 9.The equation for dot product

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Q: SerPSE1O 24.A.OP.038. [4041070] An engineering intern has a spherical shell of radius R = 0.121 m…

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Q: Three charged particles are located at the corners of an equilateral triangle as shown in the figure…

A: let q1 = 2.8 x 10-6 Cq2 = 7 x 10-6 Cq3 = 4 x 10-6  C

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Q: An infinitely long wire is uniformly charged. The voltage difference from r 2 m and r= 4 m is 30…

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Q: 9) How many electrons are moving through a current of 2A for 2 s? a) 3.2 x 10-19 b) 6.28 x 10 18 c)…

A: Given:          Current, I=2 A            Time, t=2 s Find: The number of electrons, n=?

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Q: 11) What is the current in a 5 Ohm resistor due to a potential difference of 20 V? omb bas obutingem…

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Q: 6&7 please

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Q: 5) Let's use this expression to solve a problem. Star X and Star Y are intrinsically identical…

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Q: In the following diagram, the current passing through 20 Õhm is 1.5 A. 19. What is the current…

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Q: A convex lens has a focal length of 17 cm. A candle with a height of 4 cm is 10 cm

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