Author Question: The horizontal component of the buttressing force at the base of a pointed arch is A) less ... (Read 60 times)

corkyiscool3328 · **on:** Jul 29, 2018

The horizontal component of the buttressing force at the base of a pointed arch is

A)

less than that of a rounded arch.

B)

equal to that of a rounded arch.
C)

greater than that of a rounded arch.

D)

zero in magnitude.

Question 2

A sound source emits 30.0 W of sound power spread equally in all directions. What is the sound intensity level 30.0 m from the source?

A)

94.2 dB
B)

83.2 dB
C)

2.65 10-3 dB
D)

2.65 10-3 W
E)

-25.8 dB