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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
