Smaller mammals use proportionately more energy than larger mammals; that is, it takes more energy per gram to power a mouse than a human. a typical mouse has a mass of 20 g and, at rest, needs to consume 3.0 cal each day for basic body processes. if a 68 kg human used the same energy per kg of body mass as a mouse, how much energy would be needed each day?

10,200 Cal. per day

Explanation:

The mouse consumes 3.0 Cal each day, and has a mass of 20 grams. We can use this data to obtain a ratio of energy consumption per mass

.

For the human, we need to convert the 68 kilograms to grams. We can do this with a conversion factor. We know that:

,

Now, we can divide by 1 kg on each side

,

.

Using this conversion factor, we can obtain the mass of the human in grams, instead of kilograms. First, lets take:

We can multiply this mass for the conversion factor, we are allowed to do this, cause the conversion factor equals 1, and its adimensional

Now that we know the mass of the human on grams, we can multiply for our ratio of energy consumption

So, we would need 10,200  Cal per day.

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force