Why do you want to be a correctional officer interview question?
“I want this position as a correction officer because every day is a new challenge. It’s important to me that I impact the lives of others, helping inmates to get on the right path. I see myself in this fulfilling career for many years to come.” Thank you, your vote helps us display the best answers.
What is the treatment era?
Treatment Era. 1945-1967, development of behavioral techniques and treatments in the 1930s brought about the idea of treatment in prisons. “Correctional Facilities” where treatment is based on medical model, individual and group therapy sessions.
What is Laplace correction in Newton’s formula?
Laplace correction gives correction to the speed of sound in the gas. The formula for the speed of sound in the gaseous medium was estimated by Newton, he assumed that the propagation of sound waves in air or gas is under isothermal condition. Thus it is well known as a Laplace correction to Newton’s Formula.
What is Newton formula?
Force (Newton) = Mass of body × Acceleration. Or, F = [M1 L0 T0] × [M0 L1 T-2] = M1 L1 T-2. Therefore, Newton is dimensionally represented as M1 L1 T-2.
Why Newton’s formula for speed of sound in gas fails?
Laplace Correction of Newton’s Formula He assumed that, the process of compression and rarefaction occur very fast and no exchange of heat takes place. Thus, the temperature doesn’t remain constant and the propagation of sound in gas is an adiabatic process.
What is Newton’s formula for speed of sound?
Use the formula v=ργP to explain why the speed of sound in air. (a) is independent of pressure, (b) increases with temperature, (c) Increases with humidity .
What is meant by Doppler effect?
Definition: Doppler Effect refers to the change in wave frequency during the relative motion between a wave source and its observer. For instance, when a sound object moves towards you, the frequency of the sound waves increases, leading to a higher pitch.
What is Newton’s formula for velocity of sound?
Newton’s formula for velocity of sound in gas is: v=ρP , where P is pressure & ρ is density of gas.
What is effect of pressure on velocity of sound?
At a constant temperature, the gas pressure has no effect on the speed of sound, since the density will increase, and since pressure and density (also proportional to pressure) have equal but opposite effects on the speed of sound, and the two contributions cancel out exactly.
What is the velocity of sound in water?
about 1500 meters per second
How do you calculate velocity of sound?
If the temperature is TC = 20 °C (T = 293 K), the speed of sound is v = 343 m/s. The equation for the speed of sound in air v = √γRTM can be simplified to give the equation for the speed of sound in air as a function of absolute temperature: v=√γRTM=√γRTM(273K273K)=√(273K)γRM√T273K≈331m/s√T273K.
How do you calculate sound?
Example 1. Calculating Sound Intensity Levels: Sound Waves
- Identify knowns: Sound travels at 331 m/s in air at 0ºC.
- Enter these values and the pressure amplitude into I=(Δp)22ρvw I = ( Δ p ) 2 2 ρ v w :
- Enter the value for I and the known value for I0 into β(dB)=10log10(II0) β ( dB ) = 10 log 10 ( I I 0 ) .
Does speed of sound depend on frequency?
Frequency is determined by the frequency of the source, and the properties of the medium (stiffness and density) determine the speed of sound. The wavelength would change however since λ = c/f where c is the speed of sound.
In which gas speed of sound is maximum?
Speed of Sound in Various Gases
| Gas | Speed of Sound (m/s) |
|---|---|
| Hydrogen | 1270 |
| Nitrogen | 349 |
| Oxygen | 326 |
| Carbon Dioxide | 267 |