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charchew

Hero Member
Posts: 579

on: Jul 27, 2018

The range of frequencies that a radio telescope is sensitive to is referred to as its

A) sensitivity
B) band
C) bandwidth
D) bandpass

Question 2

By how much will a slab of concrete 18. m long contract when the temperature drops from 24.C to -16.C? (The coefficient of linear thermal expansion for concrete is 12 10-6 per degree C.)

A) 1.5 cm
B) 0.86 cm
C) 70. mm
D) 15. cm
E) 0.5 cm

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frankwu0507

Sr. Member
Posts: 322

Reply #1 on: Jul 27, 2018

Answer to Question 1

B

Answer to Question 2

B

charchew

Hero Member
Posts: 579

Reply #2 on: Jul 27, 2018

Thanks

frankwu0507

Sr. Member
Posts: 322

Reply #3 on: Jul 27, 2018

Welcome

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