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When only mechanical energy acts on an object what is conserved?
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∙ 14y ago
gravity
Wiki User
∙ 14y ago
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When only air resistance acts on an object mechanical energy is conserved?
No. Air resistance is still resistance. Even if it is very slight it still dissipates energy.
When is the angular momentum of a system not conserved?
The angular momentum of a system is not conserved when a net external torque acts upon the system.
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 motion, and dissipates energy.
What is the work energy theorm?
According to the work-energytheorem if an external force acts upon a rigid object, causing its kinetic energyto change from Ek1 to Ek2, then the mechanical work (W) is given by:Answers.comwhere m is the mass of the object and v is the object's velocity.for further details mail me at rsravanesh@ymail.comany doubt contact.
Can an object be in equilibrium when only one force acts on it?
Mechanical Equilibrium is the state in which 2 or More forces act on an object , and cancel each other out. There has to be an even number of forces for them to cancel each other out. So no, a single force will not achieve mechanical equilibrium.
When only air resistance acts on an object mechanical energy is conserved?
No. Air resistance is still resistance. Even if it is very slight it still dissipates energy.
When only acts on an object mechanical energy is conservered?
gravity
In which situations is mechanical energy conserved?
A ball is thrown up into the air withough encountering air resistance.
Can an object be in mechanical equilibrium if only a single for acts on it?
No.
Can a object be in mechanical equilibrium when only a single force acts on it?
he
How do generator convert mechanical energy to electrical energy?
Yes,the mechanical energy of steam can turn the shaft of a generator thru the steam turbine in which the steam acts on its blade to produce rotational motion to transform mechanical energy. Yes, the mechanical energy of steam can turn the shaft of a generator thru steam turbine as the driver, because the steam will acts on the tubine blade to produce rotational motion to transform mechanical energy and elctrical energy as well.
When is the angular momentum of a system not conserved?
The angular momentum of a system is not conserved when a net external torque acts upon the system.
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 motion, and dissipates energy.
What is the work energy theorm?
According to the work-energytheorem if an external force acts upon a rigid object, causing its kinetic energyto change from Ek1 to Ek2, then the mechanical work (W) is given by:Answers.comwhere m is the mass of the object and v is the object's velocity.for further details mail me at rsravanesh@ymail.comany doubt contact.
Why do pendulums stop swinging?
A pendulum does not keep swinging because the kinetic energy that it has as it swings is detracted from somewhat by the air. This may be easier to see with a comparison to friction. Air resistance acts on a pendulum swinging through air just as friction acts on an object sliding across a surface, causing it to come to a halt.
What is average force of gravity that acts on each object when the objects are falling?
Gravitational potential energy
Can an object be in equilibrium when only one force acts on it?
Mechanical Equilibrium is the state in which 2 or More forces act on an object , and cancel each other out. There has to be an even number of forces for them to cancel each other out. So no, a single force will not achieve mechanical equilibrium.
