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# About the calculation of mechanical work and mechanical energy

Mechanical energy is the total amount of kinetic energy and potential energy of an object that is used to do a specific work Mechanical energy can also be defined as the energy of an element due to its position or motion or both

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• ### mechanical energy and the bernoulli equation

the mechanical energy equation in terms of energy per unit mass the mechanical energy equation for a pump or a fan can be written in terms of energy per unit mass where the energy into the system equals the energy out of the system epressurein evelocityin eelevationin eshaft epressureout evelocityout eelevationout eloss 1

• ### mechanicalenergy weber state university

as an application of the idea of mechanical worksuppose that while throwing abaseball horizontallyyou exert a force of 20 newtons over a distance of 15 metersthe amount of energy youve then transferred to the ball is work 20 n15m30n m30j 217

• ### mechanical energy physics classroom

mechanical energy as the ability to do work an object that possesses mechanical energy is able to do work in fact mechanical energy is often defined as the ability to do work any object that possesses mechanical energy whether it is in the form of potential energy or kinetic energy is able to do work that is its mechanical energy enables that object to apply a force to another object in order to cause

• ### relationship between work and mechanical energy by

work is the measurement of the force on an object that overcomes a resistive force such as friction or gravity times the distance the object is moved if there is no distance there is no work no matter what the effort in certain situations there is a relationship between that work and mechanical energy as opposed to heat or radiant energy

• ### mechanical energy formula definition equations

determine the mechanical energy solution as given parameters in the problem are m 100 kg h 10m since the person is in a static state therefore e 0 mechanical energy formula is me ke pe me 0 m g h 100 981 0 me 9810 j therefore mechanical energy will be 9810 j

• ### mechanical energy calculator calculator academy

nov 13 2020 conservation of energy calculator energy density calculator mechanical energy formula the following formula is used to calculate the total mechanical energy me 12 m v 2 mgh where me is the mechanical energy j m is the mass kg v is the velocity ms h is the height of the object m g is the acceleration due to gravity 98 ms2 mechanical energy definition

• ### mechanical work and energy conversion into

if there are n turns the work dis w n f d n m g d where is the diameter of the cylinder thus w d m g n 2 n is the number of turns the crack is rotated remember you are doing mechanical work against the friction the work done by the friction adds the internal energy thereby increasing the temperature of the cylinder

• ### mechanical energy formula definition formula and solved

apr 08 2020 mechanical energy is the total amount of kinetic energy and potential energy of an object that is used to do a specific work mechanical energy can also be defined as the energy of an element due to its position or motion or both the potential energy of an object is due to its position and kinetic energy is due to its motion

• ### 109 efficiency of the human body physics libretexts

sep 09 2020 first lets calculate the change in gravitational potential energy the person did work in converting chemical potential energy in their body to mechanical energy specifically gravitational potential energy however they are only 20 efficient which means that only 15 of the chemical potential energy they use goes into doing useful work

• ### thermal efficiency given mechanical energy calculator

thermal efficiency given mechanical energy is the percentage of heat energy that is transformed into work generally the value is below 05 and is represented as th w net q in or thermalefficiencygivenmechanicalenergy mechanical energy thermal energymechanical energy is the net amount of input heat energy converted into useful work for a given thermal system and thermal energy

• ### experiment heat equivalent of mechanical

heat equivalent of mechanical energy version 11 march 14 1997 page 2 heat which causes the temperature of the band and the drum to rise the rise in temperature is a measure of the heat energy generated to test equation 3 we must calculate the friction work measure heat energy and see whether they are equal we

• ### energy advising amp mechanical consulting services

with experience in mechanical engineering design amp building system analysis we know how great buildings work the role of an energy advisor should pay for itself amp more on every project we support contractors field technicians builders architects amp building designers we provide fast and accurate results with crystal clear presentation

• ### physics transforming energy between mechanical and

thermodynamics is the study of how thermal energy heat energy and mechanical energy are related its an important topic in physics as well as in engineering engineers must employ thermodynamic principles whenever heat is involved this includes the design of refrigerators air conditioning units automobiles jet engines and even computers one of the most important

• ### mechanical energy work amp energy quiz quizizz

120 seconds q kinetic energy is defined as answer choices energy stored due to its location energy of motion energy stored in the bonds of molecules heat energy

• ### pdf bedside calculation of mechanical power during

background mechanical power mp is the energy delivered to the respiratory system over time during mechanical ventilation our aim was to compare the currently available methods to calculate mp

• ### 93 simple machines physics openstax

d define input work output work mechanical advantage and efficiency of machines in addition the high school physics laboratory manual addresses content in this section in the lab titled work and energy as well as the following standards 6 science concepts

• ### mechanical energy and the bernoulli equation

the energy equation is a statement based on the first law of thermodynamics involving energy heat transfer and work with certain limitations the mechanical energy equation can be compared to the bernoulli equation the mechanical energy equation in terms of energy per unit mass the mechanical energy equation for a pump or a fan can be

• ### motor calculations

calculating mechanical power requirements torque speed curves numerical calculation sample calculation thermal calculations calculating mechanical power requirements physically power is defined as the rate of doing work for linear motion power is the product of force multiplied by the distance per unit time

• ### mechanical energy formula easycalculation

mechanical energy me is the total sum of kinetic energy and potential energy in an object in other words it is termed as an energy acquired by the object due to its motion or position of work is done from the below mechanical energy formula you can calculate me of an object by knowing the kinetic and potential energies

• ### mechanical energy work energy and power

quantity mechanical energy em e m unit name joule unit symbol j j mechanical energy em e m is simply the sum of gravitational potential energy ep e p and the kinetic energy ek e k mechanical energy is defined as em ep ek e m e p e k em  