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What is average acceleration?
Average acceleration is the change in velocity over a specific time period. It is calculated by dividing the change in velocity by the time taken for that change to occur. Average acceleration provides information about how quickly the velocity of an object is changing.
How is it possible for a car to have an average velocity of zero and an average speed of 65 mph?
If the car has an average speed of 65 mph, when it returns to its starting point, it will have a displacement of zero and an average velocity of zero, because velocity has both speed and direction.
The average vibration of molecules in an object is measured by?
The average vibration of molecules in an object is typically measured using temperature. Temperature is a measure of the average kinetic energy of the molecules in the object, which is directly related to their vibrational motion. By measuring the temperature of an object, we can infer the average vibrational energy of its molecules.
How do you find average acceleration of an object?
a = w2r = v2/r where a is acceleration w is angular velocity r is radius of orbit v is velocity.
How can you find kinetic energy?
Heat is just the measure of the average kinetic energy of the molecules in... whatever you are measuring. Kinetic energy is s form of energy, so the fact that the molecules have kinetic energy proves heat is energy. Also heat powered engines do work by converting heat into kinetic energy. ============================ Thanks for that. But how do you prove that heat is a form of energy ? ============================
Why average velocity of molecules of a gas is zero but the square of average velocity is not zero?
It depends on the sign of velocities. For example, if there are two velocities 7 and -7 m/s then the average velocity of the molecules will be 0. But, the square will be 49. The general thing here is that even if a velocity is negative, the square of EVERY velocity irrespective of the sign is positive i.e., squaring always removes the negative sign.
Why average velocity of molecules in gas zero whereas the average square of velocity is not zero?
Because squaring a velocity removes its sign. A velocity may be negative, but it's square is always positive. If two velocities are +5 and -5, their average is zero. But both squares are +25, so the average square is +25.
Why rms velocity is taken instead of mean velocity?
RMS velocity is used to characterize the average velocity of molecules in a gas because it accounts for both the speed and direction of particles. Mean velocity, on the other hand, only describes the overall average speed of particles without considering their directions. RMS velocity gives a better representation of the kinetic energy and behavior of gas molecules.
What is the ratio of the average velocity of hydrogen molecules to that of neon atoms at the same temperature and pressure?
The ratio of the average velocity of hydrogen molecules to neon atoms is the square root of the ratio of their molar masses. Since the molar mass of neon is about 20 times that of hydrogen, the average velocity of hydrogen molecules would be about √20 times faster than that of neon atoms.
Why is the average velocity of the molecules in a gas is zero but the average of the square velocity not zero?
The gas molecules are in motion but if the total gas volume is stationary (Eg. closed in a container) the average gas velocity is zero. And since the square of any number is never negative. And not all molecules have zero velocity at a time. Therefore, since not all numbers are zero and no number is negative the the average of numbers should be a positive number and will not be zero.
What is the velocity of hydrogen?
The velocity of hydrogen can vary depending on the specific conditions, such as temperature and pressure. In a broad sense, hydrogen molecules at room temperature have an average velocity of about 1.8 km/s.
When average velocity and average speed is equal?
For the instantaneous value of average velocity, average speed and average velocity are equal.
What is the measure of the average kinetic energy of molecules in the air?
mean free path and RMS velocity .............................................................GHo$t
How is velocity different from average speeed?
Velocity is speed and its direction. Average velocity is average speed and its direction.
When is the average velocity equal to average of velocity for an object?
Always.
Measurement of average amount of motion of molecules is?
The average amount of motion can be determined by the average speed or velocity of an object. The average speed can be calculated by the total distance divided by the total time. Speed is a scalar quantity. The average velocity can be calculated by the total displacement divided by the total time. Velocity is a vector.
Does average velocity and average speed have the same number?
velocity is a vector and speed is scalar. Velocity has magnitude and directions, with magnitude being speed. The magnitude of average velocity and average speed is the same.
