0
Efficiency here would be power out divided by power in. Energy out is 38,000 Joules. A joule is a watt X second. The toaster is on for 120 seconds. So that 316.66... watts power over the time period t(which doesn't matter). 316.66... watts/ 330 watts = 0.95959.... efficient or 96%.
What else can I help you with?
How many joules does a 800 watt toaster consume in 2 minutes?
The energy consumed by the toaster can be calculated using the formula: Energy = Power x Time. In this case, the power of the toaster is 800 watts, and the time it is used for is 2 minutes (or 120 seconds). Therefore, the energy consumed would be 800 watts x 120 seconds = 96000 joules.
How much power is necessary to do 60 joules of work in 20 seconds?
The power required to do 60 joules of work in 20 seconds is determined by the formula: Power = Work / Time. Therefore, Power = 60 joules / 20 seconds = 3 watts. So, 3 watts of power is necessary to do 60 joules of work in 20 seconds.
How much power is used when Joules of work are done in 10 seconds?
Power is calculated by dividing the work done in Joules by the time taken in seconds. So, if x Joules of work are done in 10 seconds, the power used would be x/10 watts.
How much power is necessary to do 50 joules of work in 5 seconds?
The power required to do 50 joules of work in 5 seconds is 10 watts. This is calculated by dividing the work done (50 joules) by the time taken (5 seconds), which equals 10 watts.
What is the power of a machine that does 1500 joules of work in 30 seconds?
The power of the machine is 50 watts. Power is calculated by dividing the work done (1500 joules) by the time taken to do the work (30 seconds).
You bake a potato in a 1200-w toaster oven for 25 minutes how many joules did the toaster use?
To calculate the energy used by the toaster oven in joules, we need to first convert the power from watts to joules per second (watt = joule/second). Since the toaster oven is rated at 1200 watts, it consumes 1200 joules of energy every second. In 25 minutes, there are 1500 seconds (25 minutes * 60 seconds/minute). Therefore, the toaster oven used 1200 joules/second * 1500 seconds = 1,800,000 joules of energy to bake the potato.
A toaster oven uses 67500 joules of energy in 45 seconds to toast a piece of bread. What is the power of the oven?
1500 Watt.
How many joules does a 800 watt toaster consume in 2 minutes?
The energy consumed by the toaster can be calculated using the formula: Energy = Power x Time. In this case, the power of the toaster is 800 watts, and the time it is used for is 2 minutes (or 120 seconds). Therefore, the energy consumed would be 800 watts x 120 seconds = 96000 joules.
How much power is necessary to do 60 joules of work in 20 seconds?
The power required to do 60 joules of work in 20 seconds is determined by the formula: Power = Work / Time. Therefore, Power = 60 joules / 20 seconds = 3 watts. So, 3 watts of power is necessary to do 60 joules of work in 20 seconds.
What is the speed at which energy is transfered?
That is called "power". Energy / time = powerIn SI units: Joules / seconds = WattsThat is called "power". Energy / time = powerIn SI units: Joules / seconds = WattsThat is called "power". Energy / time = powerIn SI units: Joules / seconds = WattsThat is called "power". Energy / time = powerIn SI units: Joules / seconds = Watts
How much power is used when Joules of work are done in 10 seconds?
Power is calculated by dividing the work done in Joules by the time taken in seconds. So, if x Joules of work are done in 10 seconds, the power used would be x/10 watts.
What is the power of a bulb that uses 3 jolts every 10 seconds?
Power is calculated as energy consumed per unit time. If a bulb uses 3 joules of energy every 10 seconds, its power can be calculated using the formula: Power (in watts) = Energy (in joules) / Time (in seconds). Therefore, the power of the bulb is 3 joules / 10 seconds = 0.3 watts.
How much power is necessary to do 50 joules of work in 5 seconds?
The power required to do 50 joules of work in 5 seconds is 10 watts. This is calculated by dividing the work done (50 joules) by the time taken (5 seconds), which equals 10 watts.
What is the power of a machine that does 1500 joules of work in 30 seconds?
The power of the machine is 50 watts. Power is calculated by dividing the work done (1500 joules) by the time taken to do the work (30 seconds).
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.
Calculate the power in watts used if you exert 50 joules of work in 5 seconds?
Watts is joules per second, so 50 joules in 5 seconds is 10 watts.
What is the power output of an engine that does 60 000 joules of work in 10 seconds?
60,000 joules per 10 seconds = 6,000 joules per second = 6,000 watts
