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dedylja [7]
3 years ago
7

True or false the refraction of a wave is how many wavelengths pass a fixed point each second

Physics
2 answers:
Bess [88]3 years ago
7 0

No.  That's the description of the wave's 'frequency'.

Refraction of a wave is its behavior when it crosses
the boundary between two different media.

jok3333 [9.3K]3 years ago
6 0
False that would be the frequency 
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Two long, straight parallel wires 8.2 cm apart carry currents of equal magnitude I. The parallel wires repel each other with a f
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Answer:

36.22 mA

Explanation:

i1 = I , i2 = I, d = 8.2 cm = 0.082 m

Force per unit length = 3.2 nN/m = 3.2 x 10^-9 N/m

μo = 4 π × 10^-7 Tm/A

The formula for the force per unit length between the two wires is given by

F = μo / 4π x (2 i1 x i2) / d

3.2 x 10^-9 = 10^-7 x 2 x I^2 / 0.082

I = 0.0362 A = 36.22 mA

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2 years ago
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Pam is taking a train from the town of rome to the town of florence. rome is located 30 miles due west of the town of paris. flo
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3 years ago
Atoms with the same number of protons but with different electrical charges _____.
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Answer:

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A 1000 kg elevator accelerates upward at 1.0 m/s2 for 10 m, starting from rest. a. How much work does gravity do on the elevator
cricket20 [7]

Answer:

a)= 98kJ

b)=108kJ

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Explanation:

a. The work that is done by gravity on the elevator is:

Work = force * distance  

= mass * gravity * distance

= 1000 * 9.81 * 10  

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= 98kJ

b)The net force equation in the cable

T - mg = ma

T = m(g+a)

T = 1000(9.8 + 10)

T = 10800N

The work done by the cable is

W = T × d

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108,100 J = KE + 98,100 J  

KE = 10,000 J

= 10kJ

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