G as in grams? Because what I got is 0.0602 from my calculator. So I'm not sure if that's what you are looking for.
Answer:
E = 0.4 kWh
Explanation:
Given that,
The power of a bulb, P = 40 W
Time, t = 10 hours
We need to find the energy used by the bulb. Let it is equal to E. So,
So, 0.4 kWh of energy would be needed.
Answer:
Speed of second car will be 57.17 m/sec
Explanation:
We have given lead car travels = 44 laps
1 laps = 1.34 km = 1340 m
So total distance = 1340×44 = 58960 m
Speed of lead car = 55.9 m/sec
We know that 
As the second car is 1 lap behind so distance traveled by second car = 45×1340 = 60300 m
So speed of second car will be 
Well ice would be less dense, as water freezes it expands which would reduce density and you can tell just by putting ice cubes in water
the energy efficiency of a coal burning power plant is 33% and incandescent light bulb is only 10% and the electrical transmission lines between the power plant and the house is 70 %.
<h3>What is energy Efficiency?</h3>
The definition of energy efficiency is the use of less energy to carry out an activity or achieve a goal. Homes, buildings, and manufacturing facilities that use less energy to manufacture things require less energy to heat, cool, and operate appliances and gadgets.
One of the simplest and most economical methods to slow climate change, lower consumer energy bills, and boost the competitiveness of American businesses is via energy efficiency. In order to achieve net-zero emissions of carbon dioxide through decarbonization, energy efficiency is also a crucial factor.
that the average efficiency of coal-fired power plants around the world today is 33 percent.
an incandescent bulb is only 10% efficient.
the electrical transmission lines between the power plant and the house is 70 %.
to learn more about energy efficiency go to - brainly.com/question/14280607
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