0
What else can I help you with?
When is momentun and total energy conserved?
Momentum and total energy are conserved when there are no external forces acting on a system. This can occur in isolated systems or when external forces are negligible compared to internal forces. Examples include collisions in the absence of friction or air resistance.
What is vibrating?
Vibrating is a feeling of rapid movement. Vibration can occur during earthquakes, tsunamis.
When chemical reactions occur matters is conserved explain what that means?
No
If total (PE plus KE) is conserved?
When the total mechanical energy (potential energy + kinetic energy) of a system is conserved, it means that the sum of the kinetic and potential energies remains constant over time. This implies that the system is isolated from external forces that could alter its energy. In such cases, the energy transformation between potential and kinetic energies can occur without any net loss or gain in the total mechanical energy of the system.
What is the wasted energy called?
Wasted energy is often referred to as "inefficiency" or "lost energy." This can occur from various sources such as friction, heat loss, or ineffective processes within a system.
Why uniform flow cannot occur in a frictionless channel?
Uniform flow cannot occur in a frictionless channel because the absence of friction does not allow for energy dissipation, causing the flow velocity to remain constant throughout the channel. In reality, energy is lost to friction, resulting in a non-uniform velocity profile.
Can Friction occur in a vacuum?
Yes, in general friction can occur in a vacuum, but the only kind of friction that doesn't occur in a vacuum is, of course, air friction. There is no drag force on an object falling in a vacuum.
Is the fallowing sentence true or false during nuclear reactions mass is not convserved but engery is conserved?
False. Both mass and energy are conserved during nuclear reactions, according to the principle of mass-energy equivalence stated by Einstein's famous equation, E=mc^2. This means that any changes in mass that occur during a nuclear reaction are accompanied by equivalent changes in energy and vice versa.
What states that when one from of energy is converted to another no energy is destroyed in the process?
That's the "Conservation of Energy"; also know as the "First Law of Thermodynamics". Please note that while TOTAL energy is conserved (doesn't change), in most or all processes that occur in practice, USEFUL energy is converted into UNUSABLE energy - often heat.
What energy transformations occur in a running man?
When a man is running, chemical energy stored in his muscles is converted to kinetic energy for movement. Some energy is also converted to heat due to friction between his feet and the ground.
When does rolling friction occur?
i dnt no
In a pulley system where does the friction occur tgat reduces the efficiency of the system?
Friction in a pulley system mainly occurs where the rope makes contact with the pulley wheels. This friction results in energy loss, reducing the overall efficiency of the system. Lubricants or ball bearings can help minimize this friction and improve efficiency.
