Answer:
(a)
(b) The gravitational energy stored in the Great Pyramid of Cheops is times greater than the daily food intake of a person (in Joules).
Explanation:
(a) Gravitational potential energy (with respect to the earth) is the energy possessed by an object due to its position from the surface of the earth.
It is given as:
where m = mass of object
g = acceleration due to gravity
h = height above the ground
∴
(b) A person's daily food intake = 2500 food calories
1 food calorie = 1000 regular calories
∴ 2500 food calories = 2500 * 1000 regular calories = 2500000 regular calories
We are given that :
1 regular calorie = 4.184 J
∴ 2500000 regular calories = 2500000 * 4.184 J =
Comparing this with the answer in (a) above:
The gravitational energy stored in the Great Pyramid of Cheops is times greater than the daily food intake of a person (in Joules).
Answer:
Earth science and chemistry
Explanation:
I think so
The answer is B, because if you look, once you add the double hydrogen, that's when you balance out the equation. Hope this helps!
Answer:
Explanation:
By definition , so we can calculate the total charge that went through the filament since we know the electric current and the time. If the charge of one electron is e, then the total charge will be given by Q=Ne. Combining these equations we get the number of electrons as:
Since the resistivity of tungsten (W) is , then resistance can be calculated using the formula:
Where we already obtained the radius from the diameter. Finally the Voltage will be given by the formula: