An accelerometer has a damping ratio of 0.5 and a natural frequency of 18,000 hz. it is used to sense the relative displacement of a beam to which it is attached. if an impact to the beam imparts a vibration at 4500 hz, (a) estimate the dynamic error and phase shift in the accelerometer output. (b) estimate its resonance frequency.

the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true?

a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of

5

9

degree celsius.

a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit.

a temperature increase of

5

9

degree fahrenheit is equivalent to a temperature increase of 1 degree celsius.

a) i only

b) ii only

c) iii only

d) i and ii only

answer:

the answer is d

explanation: