More energy in bullets or batteries

In summary, the conversation discusses the comparison of joules in a bullet and a battery. The energy of a bullet is its kinetic energy, while the energy of a battery is measured in watt hours. To convert joules to watt hours, one must multiply by 2.78 x 10-4. The usual standard for battery power is based on the capacity printed on the battery, which is the product of 20 hours multiplied by the constant current that the battery can supply. It is important to note that a typical dry cell battery can only be discharged once, while a rechargeable battery can be used multiple times.
  • #1
Fezziwig
14
1
Are there more joules in a bullet or a battery (in it's lifetime). I'm afraid I don't know bullet calibres but we can assume that we're talking about an AA Battery.
 
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  • #2
Fezz: You related to the guy on 'That '70's show??'..Wilmer??

Anyway, why not figure it out?

the energy of a bullet is it's kinetic energy 1/2mv2

so pick some caliber and some speed...

and the energy of a battery, watt hours...
conversion: to convert joules to watt hours, multiply by 2.78 x 10-4

the usual standard for battery power is:
The capacity printed on a battery is usually the product of 20 hours multiplied by the constant current that a new battery can supply for 20 hours at 68 F° (20 C°), down to a specified terminal voltage per cell. A battery rated at 100 A·h will deliver 5 A over a 20-hour period at room temperature.
http://en.wikipedia.org/wiki/Battery_power#Battery_capacity_and_discharging

A typical dry cell battery can be discharged only once; a rechargable battery many times and if that is what you want to compare, you'll need to find it's life cycle characteristic...
how many times it can be discharged and recharged or it's lifetime power capability...
 

What is the difference between the energy in bullets and batteries?

Bullets and batteries store energy in different forms. Bullets store chemical energy, while batteries store electrical energy.

Which one has more energy, bullets or batteries?

It depends on the type and size of the bullet or battery. Generally, bullets have more energy than batteries, but there are high-powered batteries that can store more energy than low-powered bullets.

Can bullets be used as a source of energy?

No, bullets are not a reliable source of energy. They are designed for a one-time use and the energy they store is released in a short burst. It is not a sustainable or efficient source of energy.

Why do bullets have more energy than batteries?

Bullets are designed to release a large amount of energy in a short period of time, creating a powerful force to propel them through the air. Batteries, on the other hand, are designed to release a steady and controlled amount of energy over a longer period of time.

Which one is more efficient, bullets or batteries?

It depends on the intended use. Bullets are more efficient for short bursts of energy, such as in firearms, but batteries are more efficient for long-term and sustainable use, such as in electronic devices.

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