Author Question: When the bottom string is pulled slowly in the heavy-ball-and-strings demonstration (Figure 1.7 in ... (Read 67 times)

Destiiny22 · **on:** Jul 29, 2018

When the bottom string is pulled slowly in the heavy-ball-and-strings demonstration (Figure 1.7 in your text), tension

A) in the top string is due to your pull plus the weight of the ball.
B) is about the same in both strings.
C) in the bottom string is zero.
D) none of the above

Question 2

Light of wavelength 500 nm illuminates a soap film ( n = 1.33 ). What is the minimum thickness of film that will give an interference when the light is incident normally on it?

A) 24 nm
B) 56 nm
C) 94 nm
D) 188 nm
E) 376 nm

meryzewe · **Reply #1 on:** Jul 29, 2018

Answer to Question 1

Answer: A

Answer to Question 2

C

Author Question: When the bottom string is pulled slowly in the heavy-ball-and-strings demonstration (Figure 1.7 in ... (Read 67 times)

Destiiny22

When the bottom string is pulled slowly in the heavy-ball-and-strings demonstration (Figure 1.7 in ...

meryzewe

When the bottom string is pulled slowly in the heavy-ball-and-strings demonstration (Figure 1.7 in ...

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