How to convert electric power in watts (W) to energy in joules (J).You can calculate joules from watts and seconds, but you can't convert watts to joules since watt and joule units represent different quantities.Watts to joules calculation formulaThe energy E in joules (J) is equal to ...
Calculate the watts equivalent of 22 kilocalories consumed in 24 hours. How much energy needs to be added in the form of heat to turn a 50 kg block of ice at -20^oC into steam at 135^oC? L_f = 333 kJ/kg, L_v = 2256 kJ/kg, C_{ice} = 2.108 kJ/Kg\cdot(^oC), C_{water...
How much electrical energy is generated by 100 W light bulb turned on for five minutes? (a) What is the average power consumption in watts of an appliance that uses 5.00 kW\cdoth of energy per day? (b) How many joules of energy does this appliance consume in a year?
Awatt, abbreviated as W, is the unit for measuring the rate of energy transferred over time. One watt is equal to onejouleof energy transferred per second. In layperson’s terms, watts (or wattage) measure how much electricity a device requires tostart and runandhow much a power source ...
In mechanics, the definition of power is the rate of doing work W. It's defined as W/t, where t is the time it takes for the work to be completed. To get the result in watts, work must be expressed in joules, and time must be expressed in seconds....
378kJ to boil a liter of water is rather more energy than you might think. An energy-efficient lamp rated at 10 watts uses 10 joules of energy every second (because 1 watt means using one joule per second), so it would take it 37,800 seconds—about 10.5 hours—to use as much ...
i can change the units since 1 watt is equal to 1 joule per second. but now this slope makes a bit more sense. this says that to make 1 kilogram of ice, it would require 4.55 x 10 5 joules of energy. but how much does electric energy cost? although different people have different...
isestimatedto use just under 1,300 megawatt hours (MWh) of electricity; about as much power asconsumed annuallyby 130 US homes. To put that in context, streaming an hour of Netflix requires around0.8 kWh(0.0008 MWh) of electricity. That means you’d have to watch 1,625,000 hours to ...
consumption of TVs, it’s essential to understand the unit used to measure electrical power – Watts. One watt is equivalent to one joule per second, representing the rate at which energy is consumed or produced. In other words, it’s a measure of how much energy is used in a particular...