E Calculator

The E Calculator helps users calculate the kinetic energy of an object in various units such as Joules, Kilojoules, Kilowatt Hours, Calories, and Kilocalories, based on its mass and speed.

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Step-by-Step Guide to Using the E (Energy) Calculator

This guide will walk you through using the E (Energy) Calculator to determine the energy of an object based on its mass and speed. Please follow each step carefully to ensure accurate results.

Step 1: Enter the Mass

  • Locate the “Mass (kg)” field: This is where you will input the mass of the object in kilograms.
  • Enter the mass: Type the mass of your object, ensuring that the value is greater than or equal to 0. The input accepts up to six decimal places.
  • Validation: Ensure that this field is not left blank and contains a valid number.

Step 2: Select the Speed Unit

  • Find the “Speed Unit” dropdown: This selection determines the unit of speed you will enter.
  • Choose a speed unit: Select one of the following options:
    • Meters per second (m/s)
    • Kilometers per hour (km/h)
    • Miles per hour (mph)
  • Validation: Ensure you select a unit, as this is a required field.

Step 3: Enter the Speed

  • Locate the “Speed” field: This is where you will input the speed of the object.
  • Enter the speed: Input the value corresponding to the selected speed unit, ensuring the value is non-negative. The input allows up to six decimal places.
  • Validation: Ensure this field is not empty and contains a valid numeric value.

Step 4: View the Results

Once all input fields are filled and validated, the calculator will compute the energy in various units. The following results will be displayed:

  • Energy (Joules): The energy in joules is calculated using the formula 0.5 * mass * (speed * speedUnit)^2. This value is displayed with two decimal precision and a “J” suffix.
  • Energy (Kilojoules): Computed by dividing the joules value by 1000, the result is displayed with two decimal places and a “kJ” suffix.
  • Energy (Kilowatt Hours): Calculated by dividing the joules by 3,600,000, the value is shown with four decimal places and a “kWh” suffix.
  • Energy (Calories): Determined by dividing the joules by 4.184, shown with two decimal precision and a “cal” suffix.
  • Energy (Kilocalories): Similar to Calories but divided by 4,184, presented with two decimal places and a “kcal” suffix.

By following these steps, you can efficiently use the E Calculator to find the energy of an object in several different measurements.