# What is the metric unit of power?

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watt

## How do you convert nm to RPM?

1. Torque (lb.in) = 63,025 x Power (HP) / Speed (RPM)
2. Power (HP) = Torque (lb.in) x Speed (RPM) / 63,025.
3. Torque (N.m) = 9.

## What is energy formula?

For the potential energy the formula is. P.E. = mgh. Unit. The SI unit of energy is joules (J), which is named in honour of James Prescott Joule.

## What is the formula you use to calculate power?

Power equals work (J) divided by time (s). The SI unit for power is the watt (W), which equals 1 joule of work per second (J/s). Power may be measured in a unit called the horsepower.

## What is current formula?

The relationship between current and resistance in an electric circuit. Current is usually denoted by the symbol I. Ohm's law relates the current flowing through a conductor to the voltage V and resistance R; that is, V = IR. An alternative statement of Ohm's law is I = V/R.

## How do we calculate efficiency?

Calculating energy efficiencies Calculate the percentage of the input energy ending up in the desired output and you have the efficiency: efficiency = energyoutenergyin × 100 %.

## How do we calculate time?

To solve for time use the formula for time, t = d/s which means time equals distance divided by speed.

## What is the formula for efficiency of a machine?

To calculate the efficiency of a machine, divide the output work by the input work and multiply the result by 100 percent.

## What is the formula for calculating energy efficiency?

Energy efficiency is calculated by dividing the energy obtained (useful energy or energy output) by the initial energy (energy input).

## How do you calculate the efficiency of a ramp?

The efficiency of the ramp tells us what fraction of the input energy (kinetic energy) does useful work (lifting). If you have initial kinetic energy E=12mv2 then on a frictionless ramp you should be able to reach a height h=v22g. For an initial velocity of 8.

## How do you calculate efficiency example?

For example, if you put 100 Joules of energy into a machine, and got 50 Joules back out (and the other 50 Joules was wasted by the machine), you would have 50% efficiency. So, if you put in 50 Joules and got 45 Joules back, you would have: % Efficiency = (45 J) / (50 J) * 100% = ?

## How do you calculate power output?

Power is equal to work divided by time. In this example, P = 9000 J /60 s = 150 W . You can also use our power calculator to find work - simply insert the values of power and time.

## What is efficiency example?

Efficiency is defined as the ability to produce something with a minimum amount of effort. An example of efficiency is a reduction in the number of workers needed to make a car. ... The efficiency of this loudspeaker is 40%.

## What is formula for productivity?

The productivity formula is simple: Productivity = Output / Input. Another way to look at it is: Productivity = Value of Work / Hours Worked. Output can be measured in units, whereas value of work is typically measured in dollars.

## What is the SI unit of efficiency?

The term efficiency is a dimensionless measure (sometimes quoted in percent), and strictly heat rate is dimensionless as well, but often written as energy per energy in relevant units. In SI-units it is joule per joule, but often also expressed as joule/kilowatt hour or British thermal units/kWh.

## Why Efficiency has no unit?

We express efficiency as a percentage. ... In other words, it has no units (Percent is NOT a unit.). If you look at the efficiency equation at the right, you can see why efficiency has no units. Notice that the SI unit for work out is Joules, which is the same as the SI unit for work in.

## What is the biggest number efficiency can be?

The maximum level for the Efficiency enchantment is Level 5. This means that you can enchant an item with up to Efficiency V. The higher the level, the more powerful the enchantment.

## How many bookshelves do you need for Level 30?

15 bookshelves

## Can you get an efficiency 5 villager?

I got a eff V villager the other day for like 25 emeralds and a book. Yes it's possible.

## How do you get fortune 3?

1. You need and enchantment table which is fully leveled to 30.
2. Get to level 30.
3. Get a pickaxe of your liking.
4. Then you put the pickaxe in the enchanting table and if luck goes your way you will get fortune.

## Does Fortune 3 give more XP?

Fortune is an enchantment applied to mining and digging tools that increases the amount and/or chances of specific item drops. It does not increase experience drops.

## What does Fortune 3 do on an AXE?

When used on leaves it increases the odds of receiving apples, sticks and saplings. When used on vines (all kinds) it also increases the odds of receiving a drop, with the highest rate of 100% with a Fortune III Axe.

## What does Silk Touch do on an AXE?

Silk Touch is an enchantment that allows many blocks to drop themselves instead of their usual items when mined.

## Can you mine spawners with silk touch?

A Spawner cannot be obtained in survival, even with Silk Touch, but it will drop experience if mined with a pickaxe.

## Does fortune on an AXE give more wood?

Using this enchantment on axe won't grant you more wood, but you will get some more benefits. An axe is a common item that players usually bring with them while exploring. Using Fortune on an axe will help you gather more items, such as seeds and saplings.

## Does Silk Touch 2 exist?

There is no Silk Touch 2, you can't "mine" spawners.

## Can you Silk Touch a end portal?

Can anyone tell me if you can silk touch end portal blocks and physically move the end portal? You can't even mine them or blow them up. They're as indestructible as bedrock. Nope.

## Is silk touch a level 30 enchant?

According to the table for Silk Touch, you want to be at level 30 to get the best chance per single enchantment, you should still expect to enchant an average of 6 tools before getting Silk Touch rather than another enchantment.

## Can you get Silk Touch 3?

Silk Touch will still randomly appear as an available enchant for all tools, with the same frequency as Fortune 3. The only 'treasure' enchantments that cannot be found with the enchanting table is Mending, Frost Walker, Curse of Binding, and Curse of Vanishing.

## Can you get silk touch with a Level 1 Enchantment?

The maximum level for the Silk Touch enchantment is Level 1. This means that you can only enchant an item with up to Silk Touch I, and nothing higher for this enchantment.