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What does the average speed mean?
Distance/Time
If A student measures the speed of a rolling ball three times. She adds the measurements and divides by 3. What quantity did the student calculate?
She obtained the average speed of the three measurements.
What does the experiment suggest about the average speed of hydrogen molecules compared with the average speed of molecules in the air?
The experiment suggests that the average speed of hydrogen molecules is higher than the average speed of molecules in the air. This is because hydrogen molecules are lighter and have a higher root mean square speed due to their lower mass.
Jake and Brenda drove at a speed of 30 mph for 1 hour. Then they turned around and drove 45 mph until they were back where they started. What is true about their average speed and average velocity?
Their average speed is the harmonic mean of 30 and 45 while their average velocity is zero.
What is the average running speed of a raising horse?
I do hope you mean racing horse. An average speed for a Thoroughoutbred race horse is 40 miles per hour.
What is the name for a planet's speed in its orbit?
It is the orbital velocity (speed and direction) or orbital speed (rate of motion). It is usually stated as "average orbital speed" but is actually "mean orbital speed."
What is meant by rms?
rms means root mean square, or in a roundabout way the average. Therefore the average velocity or average speed (of a car?)
When are speed and average speed the same?
Average speed is an average value of speed over a given time. If your speed is constant (not changing), then your average speed will equal your speed at any given moment in time.
What is meant by rms velocity?
RMS velocity refers to the root mean square velocity of particles in a gas, which is the square root of the average of the squares of the velocities. It is a measure of the average speed of gas particles in a system.
What do you mean by instantaneous speed?
Instantaneous speed is the speed of a body at any one instant. There is really no such thing as the instantaneous speed, it is merely the average speed over a very short space of time.
If a train travels from Onetown to Sometown at 60 mph and returns at 40 mph what is its average speed?
The average speed of the train for the entire trip would be the harmonic mean of 60 mph and 40 mph. Using the formula for harmonic mean: 2 * 60 * 40 / (60 + 40) = 48 mph. So, the average speed of the train is 48 mph.
What does speed formula mean?
Probably: Average Speed = Total Distance/Total Time. or Instantaneous Speed = Gradient of the tangent to the Distance v Time graph.
