Exam 8: Time and Time-Related Variables in Engineering

The speed of sound in air is approximately .The speed of sound in steel is approximately .If your friend strikes one end of a steel pipe with a hammer while you listen at the other end, you will hear two distinct sounds: one traveling through the air and the other traveling through the steel pipe.If the pipe is 200 meters long, how much time elapses between the two sounds?

When the "A" string of a properly tuned violin is plucked, it takes to return to it's starting position.What is the frequency of this oscillation?

Time is a fundamental dimension and plays an important role in our daily life in describing events, processes, and many occurrences in our surroundings.

Because it takes the earth 24 hours to complete one revolution about its axis, every 15 degrees longitude corresponds to 1 hour.

A certain medical imaging device commonly referred to as "ultrasound" creates sound by oscillating with a frequency of .What is the period of this oscillation?

While filling up your car with gasoline, you notice that it takes 3 minutes to dispense 56.8 liters of gasoline.What is the average flow rate in liters per minute?

A certain medical imaging device commonly referred to as "ultrasound" creates sound by oscillating with a period of .What is the frequency of this oscillation?

A car starting from rest has a constant acceleration of 5 m/s2.How long will it take to reach a speed of ?

If a wheel, turning at a constant angular speed, makes ten complete revolutions every second, what is the angular speed, in radians per second?

A car traveling at constant speed as it rounds a curve is not experiencing angular acceleration.

A unit of measure commonly used to quantify liquid flow is gpm.What does gpm stand for?

If the pitcher's mound and home plate are apart, how much time (in seconds) does the batter have to react to a fastball?

Ten seconds after starting from rest, a motorcycle is moving at 20 m/s.What is the motorcycle's acceleration in m/s2? Assume constant acceleration.

The speed of sound in air is approximately .The speed of light in air is approximately .If 10 seconds elapses between seeing a lightning strike and hearing the thunder, how far away was the lightning strike?

Period and frequency mean the same thing.

A unit of measure commonly used to quantify air flow is cfm.What does cfm stand for?

Most engineering problems may be divided into two broad areas: steady and unsteady.

The translational speed of a motorcycle is 32.2 km/h.What is the rotational speed of the 62 cm diameter front wheel?

The speed of sound in air is approximately .The speed of light in air is approximately .If a lightning strike occurs three kilometers away, how much time elapses before you hear the thunder?

A car traveling at constant speed as it rounds a curve is not accelerating.