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How much power is needed to lift the 200-n object to a height of 4m in 4 seconds?
Power = (energy) / (time) =(200 newtons x 4 meters) / (4 seconds) =200 newton-meters per second = 200 watts
How Many watts in 2.2kva?
1540 watts
What is the imperial unit to measure power?
Watts Watts
How many watts does it take to move one kilogram one meter on a level plane in a vacuum?
Simple answer: It depends on how much time you want to spend moving that mass one meter. Complex answer: A watt is a measurement of power. By definition, P = F*d, where P is the power in watts (W), F is the force in newtons (N), and d is the displacement in meters (m). By substituting the familiar equation, F = m*a, we get P = m*a*d, where m is the mass in kilograms (kg) and a is the acceleration in meters per second squared (m/s2). Furthermore, a = dv/dt, where dv is the change in velocity, measured in meters per second (m/s), and dt is the total time taken for the velocity to change, measured in seconds (s), and dv = d/dt (d being the displacement and dt being the change in time once again). So, a = d/dt2, and P = m*d2/dt2. Knowing the mass of the object (1 kg) and the total displacement (1 m), we can work out a general formula for the power, dependent on time. Substituting those values in, we get P = (1 kg) * (1 m)2/dt2, which simplifies to P = 1/dt2. What this means is, 1 divided by the square of the time you wish to spend moving the 1-kg mass equals the power in watts that it will take to move said mass 1 meter.
How many watts are required to heat one gallon of water one degree?
2.4705 watts/hour
Sound is measured in what unit watts meters decibels amps?
i have no clue what the answer is..
Sound measured in?
If you would like to measure how loud the sound is, dB, decibels, would be good. To give you a rough idea, a whisper is about 30 dB, a baby crying loudly about 100 dB. Also, if you like to measure the frequency or the wavelength, you can use Hertz.
How does one measure guitar amps?
Guitar amps are measured in decibels while speaker output can be measured in watts. The relative wattage or output is not as important as that the sound be heard above the sound of the rest of the instruments in the band.
What units are used to measure sound intensity?
Sound intensity is measured in watts per square meters, but our eardrums are only moved by the sound pressure measured in newtons per square meters or pascals.
Sound is measured in watts or amps?
Sound is actually measured in decibels (dB), which is a unit that quantifies the intensity of sound. Watts and amps are used to measure electrical power and current, respectively, and are not directly related to sound measurement.
Does voltage current or power affect volume in a speaker?
Power (Watts)/ Decibels (if the speaker is efficient) 2 Watts = 93 decibels 4 Watts = 96 decibels 8 Watts = 99 decibels 16 Watts = 102 decibels 32 Watts = 105 decibels 64 Watts = 108 decibels 128 Watts = 111 decibels 256 Watts = 114 decibels 512 Watts= 117 decibels 1024 Watts = 120 decibels Some Volumes to Compare 10 decibels = normal human breathing 60 decibels = normal human conversation 110 decibels = power saw, car horn, shouting in ear, 120 decibels = jet aircraft close by, emergency vehicle siren, rock concert
How do you find the intensity of sound?
The intensity of sound is found by the amount of energy that flows through a unit area in a certain amount of time. It is measured in watts per square meter (W/m^2) and can be calculated using the formula: Intensity = Power / Area.
What is the unit used to measure the relatice intensity of sound?
Your ears and the sound pressure level meter "measure" the sound pressure of a sound wave. Sound intensity is measured in watts per square meter.Intensity is measured in watts per square meter.Note: Sound power (sound intensity) is the cause -and the sound pressure is the effect.The effect is of particular interest to the sound engineer.
Convert 100W into decibels?
Given P = 100 watts. Reference sound intensity Po = 10^−12 W. Reference sound intensity level LPo = 0 dB. Get power level LP in dB when entering sound power P in watts. Power level LP = 10×log (P / Po) dB = 10×log (100 / 10^−12) = 140 decibels (dB).
Is wattage proportional to decibels or is it exponential?
It is exponential. +3 decibels is a doubling of power in watts, while -3 decibels is a halving of power in watts.
What is units measuring the intensity of a sound wave?
The intensities of traveling waves, which includes sound, light, etc., are measured in units of power divided by area. That is, watts per square meter (W/m2 ) or watts per square foot (W/ft2), or any combination of units which is equivalent.
What is the intensity of sound?
The sound intensity is defined as the sound power per unit area and is measured in watts per square meter. But our ears are sensitive only to the sound pressure, measured in pascals or newtons per square meters. Scroll down to related links and look at "Table of sound levels".
