Answer:
6.758V
Explanation:
The computation of the final speed of the defender/ball carrier mass is shown below:-
Data provided in the question
Measurement of ball = 75 kg
Right m/s = 6.5 m/s
Defender = 80 kg
Carrying running 7.0 m/s
Based on the above information, the final speed of the defender or ball carrier mass is
As we know that
Conservation of momentum is
= Ball in Kg × Right m/s + Defender in Kg × running m/s
= 75 × 6.5 + 80 × 7
= (75 + 80)V
Therefore, the Final speed = 6.758V
Incandescent bulbs work by conducting an electric current along a filament made of a long, thin piece of tungsten metal. The filament must be heated to temperatures of about 2,300 degrees Celsius to glow and emit a white-hot light. But the process transforms only 5 percent to 10 percent of the electricity used into visible light. The rest is transformed into heat, which can eventually increase the temperature of a room.
CFL bulbs, on the other hand, are made of glass tubes filled with gas and a small amount of mercury. The amount is so small that an old-fashioned glass thermometer holds 100 times as much mercury as one CFL bulb. Light is emitted when mercury molecules in a CLF bulb become excited by electricity running between two electrodes at its base. The mercury emits an invisible ultraviolet light that becomes visible when it hits the white coating inside the CFL bulb.
Basically, based on how they both work, fluorescent bulbs last longer and do not release as much heat as incandescent bulbs which means it's also better for the environment.
The amount of friction depends on the force pushing the surfaces together. If this force increases, the hills and valleys of the surfaces can come into closer contact. The close contact increases the friction between the surfaces.
The heat energy which has to be supplied to change the state of a substance is called its latent heat. Latent heat does not increase the kinetic energy of the particles of the substance, so the temperature of a substance does not rise during the change of state. :))