0
Add your answer:
Earn +20 pts
The velocity of sound in air is independent of change in what variable?
The velocity of sound in air is independent of changes in frequency. Sound waves travel at a constant speed determined by the properties of the medium they are traveling through, such as air temperature and pressure.
Would rocket action still occur if there were no surrounding air?
Yes, rocket action would still occur even in the absence of surrounding air, as it relies on the principle of conservation of momentum. The expulsion of mass from the rocket at high velocity will result in an equal and opposite reaction that propels the rocket forward, irrespective of the presence of air.
Is air velocity measured in cubic feet?
No, air velocity is typically measured in feet per minute (ft/min) or meters per second (m/s). Cubic feet is a measurement of volume, not velocity.
Why velocity of sound in moist air as compared to dry air is more?
The velocity of sound in moist air is higher than in dry air because the presence of water vapor in moist air increases the density and compressibility of the air. This results in faster sound propagation as the speed of sound is directly proportional to the square root of the medium's density.
How does air resistance affect the velocity of an object?
Air resistance acts in the opposite direction to the object's motion, slowing it down by creating a force that opposes its velocity. As the object moves faster, the air resistance force increases, causing the object's velocity to decrease. The greater the surface area of the object and the faster it moves, the more significant the effect of air resistance on its velocity.
What does a velometer measure?
Air velocity in ventilation systems
Bernoullis principle about air velocity and pressure?
Bernoulli's principle states that as the velocity of a fluid (such as air) increases, its pressure decreases, and vice versa. This means that if air is moving faster, the pressure exerted by that air will be lower compared to still air. This principle is important in understanding the behavior of fluids in various applications, such as in aerodynamics or fluid dynamics.
What is the approximate velocity of the sound in air?
the velocity of sound in the air is 300m/s
What is the difference between HVAC diffuser's neck velocity and face velocity?
Neck velocity refers to the air speed at the neck of the diffuser where the air exits, while face velocity refers to the air speed at the face of the diffuser where air enters. Neck velocity is typically higher than face velocity due to the acceleration of air as it passes through the diffuser.
How does air resistance affect terminal velocity?
Air resistance increases as an object's speed increases. At terminal velocity, the upward force of air resistance equals the downward force of gravity, resulting in a constant velocity. The greater the air resistance, the lower the terminal velocity of an object falling through the air.
How do you calculate velocity of air in a mine?
To calculate the velocity of air in a mine, you can use a device called an anemometer. An anemometer measures the flow and speed of air, providing you with the velocity information. Simply place the anemometer in the air flow in the mine and it will give you a reading of the velocity.
How fast does air with a velocity pressure of 0.20 in w.g. move through a round duct?
The velocity of air flowing through a round duct can be calculated using the formula: Velocity = (2 * velocity pressure) / (air density). Given the velocity pressure of 0.20 in w.g., the air density needs to be known to determine the velocity.
When a object falls what does it reach because of air resistance?
When an object falls, it reaches terminal velocity due to air resistance. Terminal velocity is the constant speed an object will reach when the force of gravity pulling it down is equal to the force of air resistance pushing against it. At terminal velocity, the object stops accelerating and falls at a constant speed.
When an object falls through the air and encounters air resistance its overall speed will be?
Terminal Velocity. This is the velocity at which the accelaration from Earth's gravity and the drag from air resistance reaches equillibrium.
The velocity of a sound wave travel though the air is approximately?
Velocity of sound in air is 324m/s.
How fast does air with a velocity pressure of 0.20 in w.g. move through square duct?
The velocity pressure can be used to calculate the velocity of air in the duct using the formula: velocity = √(2 * pressure / air density). Assuming standard air density and converting 0.20 in w.g. to the appropriate pressure unit, the velocity of air in the duct would be approximately 903 ft/min.
What is the hypothesis of how does air resistance affect the velocity of falling objects?
The hypothesis is that air resistance decreases the velocity of falling objects. As an object falls, the force of air resistance acting against the object's motion increases, ultimately slowing down the object and reducing its velocity compared to in a vacuum.
