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Which energy is always conserved?
Mechanical energy is always conserved in a closed system. It can exist as potential energy (stored energy) and kinetic energy (energy of motion). This conservation principle is known as the law of conservation of mechanical energy.
Is it possible for a frictional force to increase the mechanical energy of a system?
your question is not clear but fro what i could understand, i can tell you that frictional force always opposes motion of mechanical system ( so it would decrease the system's mechanical energy) therefore i can never increase it.
Are there any situations in which a frictional force can increase the mechanical energy of a system?
No, friction always acts in the direction opposite to the motion of an object, which dissipates mechanical energy in the form of heat. Therefore, friction cannot increase the mechanical energy of a system.
According to the law of conservation of mechanical energy if the only force acting on this pendulum is gravity the total energy of the system is .?
The total mechanical energy of the system is conserved and remains constant as long as the only force acting on the pendulum is gravity. This means that the sum of the kinetic energy and potential energy of the pendulum remains constant throughout its motion.
The mechanical advantage of a single fixed pulley is always one because why?
The mechanical advantage of a single fixed pulley is always one because it changes the direction of the force applied without providing any leverage to increase the force. This means that the input force is the same as the output force, resulting in a mechanical advantage of 1.
Will pushing on a car always change the car's mechanical energy?
no because the kinetic energy will change but the mechaincal energy will not because thye car is not on
What is the sum of kinetic energy and potential energies?
Mechanical Energy
Which energy is always conserved?
Mechanical energy is always conserved in a closed system. It can exist as potential energy (stored energy) and kinetic energy (energy of motion). This conservation principle is known as the law of conservation of mechanical energy.
What would always lead to an increase in the average kinetic energy of a gas?
Heating it.
Does water always have the same energy?
No. The energy you might be referring to is kinetic energy which is the energy possessed by individual water molecules. An increase in kinetic energy will be percieved as and increase in temperature. Similarly a decrease in kinetic energy will be percieved as a decrease in temperature.
Is it possible for a frictional force to increase the mechanical energy of a system?
your question is not clear but fro what i could understand, i can tell you that frictional force always opposes motion of mechanical system ( so it would decrease the system's mechanical energy) therefore i can never increase it.
Are there any situations in which a frictional force can increase the mechanical energy of a system?
No, friction always acts in the direction opposite to the motion of an object, which dissipates mechanical energy in the form of heat. Therefore, friction cannot increase the mechanical energy of a system.
According to the law of conservation of mechanical energy if the only force acting on this pendulum is gravity the total energy of the system is .?
The total mechanical energy of the system is conserved and remains constant as long as the only force acting on the pendulum is gravity. This means that the sum of the kinetic energy and potential energy of the pendulum remains constant throughout its motion.
Potential energy changing into kinetic energy formula?
The sum of Kinetic energy, gravitational potential energy and mechanical springs potential energy is defined to be the mechanical energy of a system : Em= Ek + Ug + Uspring Theorically, the mechanical energy of a system is always constant, which means that: Em before= Em after Ek1 + Ug1 + Uspring 1 = Ek2 + Ug2 + Uspring 2 Systems involving mechanical springs are rare, though, so Uspring is normally set equal to zero in the situations where springs are not involved.
The mechanical advantage of a single fixed pulley is always one because why?
The mechanical advantage of a single fixed pulley is always one because it changes the direction of the force applied without providing any leverage to increase the force. This means that the input force is the same as the output force, resulting in a mechanical advantage of 1.
What is mechanical energy in science?
Mechanical energy is the sum of an object's kinetic energy (energy of motion) and potential energy (energy of position). It is the energy associated with the motion or position of an object due to forces acting on it. This energy can be transferred between different forms but is always conserved in a closed system.
Why was the elevator always so grouchy?
People were always pushing its buttons
