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How many joules of kinetic energy does the pendulum have when it has 100 J of potential energy?
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What is kinitic and potintial energy?
Kinetic energy is the energy possessed by a moving object, calculated as ½mv2. If m is the mass in kg and v the speed in metres/sec the answer will be in joules. Potential energy is sitting there waiting to be turned into kinetic energy. Examples are a mass on a shelf, that will gain kinetic energy if it is dropped off, or energy in a pendulum at the top of its swing when it is stationary. With a pendulum the energy is continually exchanged between potential and kinetic and the total energy (ignoring friction) stays the same (with a real pendulum the total energy runs down because of air resistance).
What is the unit of kinetic energy?
Joules, all energy is measured in joules.
When an object falls which energy changes to?
As the object falls, it PEG or potential gravitational energy becomes kinetic energy. Before falling, it has for example 10 joules of PEG and 0 joules of Kinetic energy. As it falls, the PEG decreases and the kinetic energy increases, until it hits the ground, when all the energy is dispersed as sound, heat, etc.
The potential energy of a 50 newton object resting on the edge of a cliff 30 meters high is?
The word in your question that I keyed on is "resting". An object at rest has zero kinetic energy. If you meant potential energy, the answer is 1500 joules.
What is the total mechanical energy of a glass of milk falling off a table at a time when its potential energy is 15j and its kinetic energy is 12j?
27 Joules
What is kinitic and potintial energy?
Kinetic energy is the energy possessed by a moving object, calculated as ½mv2. If m is the mass in kg and v the speed in metres/sec the answer will be in joules. Potential energy is sitting there waiting to be turned into kinetic energy. Examples are a mass on a shelf, that will gain kinetic energy if it is dropped off, or energy in a pendulum at the top of its swing when it is stationary. With a pendulum the energy is continually exchanged between potential and kinetic and the total energy (ignoring friction) stays the same (with a real pendulum the total energy runs down because of air resistance).
What is a comparison of kinetic and potential energy?
They are both measured in Joules
Suppose a falling object loses 7J of potential energy. How much kinetic energy will it gain?
From what I understand: PE - Potential Energy (mgh) KE - Kinetic Energy (1/2 mv2) If one dismisses the friction with air (conservation of energy), a loss of 7 joules for potential energy means a gain of 7 Joules in kinetic energy.
What are the similarities between kinetic energy and potential energy?
They are both measured in joules, and they're both types of energy.
Similarities between Kinetic energy potential energy electric energy and gravitational energy?
they are both measured in joules
What is the similarities between kinetic energy and potential energy?
kinetic energy depends on speed an potential energy depends on height and mass
Does a water fall have kinetic energy?
Yes, it does. Kinetic energy is energy in motion. If you have a waterfall, the energy within it is constantly being moved. If it were perhaps a waterfall that was frozen over, then it would not have kinetic energy; it would have potential energy. Relative to the pool at the bottom, the water at the top has potential energy until it reaches the edge. After it spills over, each kilogram of water loses 9.8 joules of potential energy and gains 9.8 joules of kinetic energy for every meter it falls. When it reaches the bottom, all of the potential energy it had at the top has been converted to kinetic energy.
How does kinetic energy and potential energy switch?
work=change in kinetic energy, doing work on an object by moving it up increases that object's potential energy because it has the POTENTIAL to fall due to gravity. kinetic energy is lost in the movement of the object. However, throughout an entire closed system, the total energy in joules (or kinetic enery plus potential energy) does remain constant. this is useful because the initial energy and the final energy most be equal, and if thats true, then initial kinetic energy plus initial potential energy must equal final kinetic energy plus final potential energy. does that help?
What is the unit of kinetic energy?
Joules, all energy is measured in joules.
When an object falls which energy changes to?
As the object falls, it PEG or potential gravitational energy becomes kinetic energy. Before falling, it has for example 10 joules of PEG and 0 joules of Kinetic energy. As it falls, the PEG decreases and the kinetic energy increases, until it hits the ground, when all the energy is dispersed as sound, heat, etc.
The potential energy of a 50 newton object resting on the edge of a cliff 30 meters high is?
The word in your question that I keyed on is "resting". An object at rest has zero kinetic energy. If you meant potential energy, the answer is 1500 joules.
What is the total mechanical energy of a glass of milk falling off a table at a time when its potential energy is 15j and its kinetic energy is 12j?
27 Joules
