Answer : Total electrical energy is 36000 J.
Explanation :
It is given that,
Power of electric toaster, P = 1200 Watts
Voltage, V = 120 Volts
Time, t = 30 s
Electric energy is defined as the product of the power and the time taken.
Total electrical energy used to operate the toaster for 30 seconds is 36000 J.
Answer:
High specific heat -> takes more energy to raise/lower object's temperature
Low specific heat -> takes less energy to raise/lower object's temperature
Explanation:
The specific heat capacity is the amount of heat required to raise the temperature of something per unit of mass.
A high specific heat value for an object means it takes more energy to raise or lower that object's temperature. A low specific heat value for an object means it does not take very much energy to heat or cool that object.
Answer:
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Explanation:
i don't know this but when i find the answer i will type here
The heat in the air ballon from the flame will create moisture in the ballon and make it rise
Answer:
Explanation:
As we know that the level of intensity is given as
here we know
now the sound is travelling in all possible directions so we have
now for level of sound we have
