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How much power is needed to do 1200 Joules of work in 90 seconds?
Power is measured in watts, or joules per second. So in 90 seconds, 1200 joules of work is equal to 1200/90 watts or 13.3 watts.
Does 15 amps equals 1500 joules?
No, 15 amps does not equal 1500 joules. Amperes (amps) measure electric current, while joules measure energy. To relate them, you need to know the voltage (in volts) and the time (in seconds) for which the current flows. The formula for electrical energy is ( \text{Energy (Joules)} = \text{Power (Watts)} \times \text{Time (seconds)} ), where power is calculated as ( \text{Voltage (Volts)} \times \text{Current (Amps)} ).
What does one thousand watts equal?
That is called a kilowatt (kW). It is also equal to 1000 joules/second.
What is Planck's constant dimensionally equal to?
Planck's Constant is dimensionally equal to Angular Momentum. The unit is Joules second.
What is the rate at which work is done?
Work is energy, measured in joules. The rate of work, or joules per second, is known as watts, or power.
