In the United States, the average person eats about 3000 food Calories per day. What is the average power of this energy intake? 14.5 watts 14.5 watts 145 watts 145 watts 1450 watts 1450 watts 14 , 500 watts

Explanation:

 3000 Calorie = 3000 x 1000 calorie

1 calorie = 4.2 Joule

3000 x 1000 calorie = 4.2 x 3000 x 1000 J

= 12.6 x 10⁶ J

It is taken in one day

time period of one day = 24 x 60 x 60 second

= 86400 s

energy given by this intake in 86400s is 12.6 x 10⁶ J

power = energy / time

= 12.6 x 10⁶ / 86400 J/s

= 145.8 J/s or W

= 145 W.

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gpe = mass x gravity constant x height or… gpe = mgh

where… mass: measured in kilograms (kg)

gravity: gravity constant on earth = 10.00 m/s2

height: measured in meters (m)

gpe: measured in joules (j) or kilojoules (kj)

how do you solve gpe?

gravitational potential energy (gpe) is the energy an object has because of its position above the. ground.

gpe = mass x gravity constant x height or… gpe = mgh.

mass:

note: to earn full marks when solving science word problems, you must show your work:

formula.

example:

given values:

mass = 0.3 kg.