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How do you find how much energy is transferred in an hour joules?
To find out how much energy is transferred in an hour in joules, you need to know the power consumption of the device in watts. You can calculate the energy transferred by multiplying the power in watts by the time in hours. The formula is Energy (joules) = Power (watts) x Time (seconds).
How much energy is needed to melt 2kg of gold?
It takes approximately 64,000 Joules of energy to melt 1kg of gold. Therefore, to melt 2kg of gold, you would need around 128,000 Joules of energy.
What is 75kg in joules?
Mass is measured in kilograms, not in joules. Joules are a unit of energy. To calculate the energy of a 75kg mass, you would need additional information such as the velocity or height it is at.
How much mechanical energy will be provided by a motor that is 70 percent efficient and requires 1960 joules of energy?
To calculate the mechanical energy provided by the motor, you need to divide the input energy by the efficiency of the motor. In this case, with 70% efficiency, you would divide 1960 joules by 0.70 to find that the mechanical energy provided would be approximately 2800 joules.
How much is 4180J in kw?
To convert joules to kilowatts, you need to divide the energy in joules by 3,600,000 (since 1 kWh = 3,600,000 J). Therefore, 4180 J is 0.00116 kWh.
How do you find how much energy is transferred in an hour joules?
To find out how much energy is transferred in an hour in joules, you need to know the power consumption of the device in watts. You can calculate the energy transferred by multiplying the power in watts by the time in hours. The formula is Energy (joules) = Power (watts) x Time (seconds).
How much energy is needed to melt 2kg of gold?
It takes approximately 64,000 Joules of energy to melt 1kg of gold. Therefore, to melt 2kg of gold, you would need around 128,000 Joules of energy.
What is 75kg in joules?
Mass is measured in kilograms, not in joules. Joules are a unit of energy. To calculate the energy of a 75kg mass, you would need additional information such as the velocity or height it is at.
How do you calculate how much energy a battery has with only the volts and coulombs?
To calculate the energy stored in a battery with volts and coulombs, you can use the formula: Energy (Joules) = Voltage (Volts) x Charge (Coulombs). Multiply the voltage by the charge of the battery to get the energy capacity in Joules.
How much mechanical energy will be provided by a motor that is 70 percent efficient and requires 1960 joules of energy?
To calculate the mechanical energy provided by the motor, you need to divide the input energy by the efficiency of the motor. In this case, with 70% efficiency, you would divide 1960 joules by 0.70 to find that the mechanical energy provided would be approximately 2800 joules.
How much is 4180J in kw?
To convert joules to kilowatts, you need to divide the energy in joules by 3,600,000 (since 1 kWh = 3,600,000 J). Therefore, 4180 J is 0.00116 kWh.
What does the word joules have to do with chemistry?
Joules are a measurement of energy. This has to do with chemistry because scientists and chemists need to be able to measure energy in chemistry experiment, and this is an accurate measurement.
Is it true that energy is measured in joules?
Yes, but it might be confusing to some, because it is also the unit for work. To do 100 joules of work, you need 100 joules of energy. See related link for more detail.
How do you convert Joules per sq cm to Joules?
To convert from Joules per square centimeter (J/cm^2) to Joules (J), you would need to multiply the value in J/cm^2 by the area over which the energy is distributed in square centimeters. This will give you the total energy in Joules.
How much voltage is 6 joules?
Voltage cannot be directly converted from joules, as they are different units of measurement. Joules represent energy, while voltage is a measure of electric potential difference. To determine voltage, you would need more information such as current and resistance in the circuit.
Does it it take more energy to heat the water to 100 degrees celsius or boil it?
If by "boil" you mean have it all evaporate, that takes MUCH more energy. For example, to increase the temperature of one gram of water from 20 to 100 degrees Celsius, you need 4.2 joules/gram/degree times 80 degrees = about 336 joules; then, to evaporate all the water, you need an additional 2257 joules.
How many watts in 7000 joules?
To convert joules to watts, you need to know the time over which the energy is expended. Since power in watts is defined as energy in joules divided by time in seconds, you cannot directly convert 7000 joules to watts without knowing the time duration.
