Answer:
3.29ft/mi
Explanation:
The gradient of a river is the slope through which a river flows. It measures the vertical drop in elevation of river to the horizontal distance.
Mathematically;
River gradient =
Elevation = 1229ft
Horizontal distance = 373miles
River gradient = = 3.29ft/mi
Answer:
a) The yearly energy consumption for a US population of 300 million is
b) The energy that would be released if a 60 kg person were converted entirely into energy is Joules.
c) 180 years would this amount of energy support a population of 300 million.
Explanation:
a) Average energy consumed by single person of US = 100,000,000 J/year
Then 300 million US citizen will consume:
300 million = 300 × 1,000,000 =
The yearly energy consumption for a US population :
The yearly energy consumption for a US population of 300 million is
b)
E = Energy from converted mass of m
c = speed of light
Given mass of person = m = 60 kg
c) Energy calculated in part (b) =
The yearly energy consumption for a US population of 300 million in an year =
Let the that would be supported by Joules of energy be x.
180 years would this amount of energy support a population of 300 million.