By allowing us to see and hear.
The speed of a wave of sound or light can be changed by altering the medium through which it travels. For sound waves, the speed can be changed by changing the temperature, density, or composition of the medium. For light waves, the speed can be changed by changing the refractive index of the medium.
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Some energy is changed into the desired form. The rest is changed into undesired form such as heat, light, sound, etc.
A battery is an example of something that has chemical energy and can be changed into light energy and sound energy. When a battery powers a flashlight, the chemical energy is converted into light energy, and when it powers a speaker, the chemical energy is converted into sound energy.
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Some energy is changed into the desired form. The rest is changed into undesired form such as heat, light, sound, etc.
The electrical energy from the device can be changed into various forms of energy, such as heat energy (through resistance in a wire), light energy (through light bulbs), kinetic energy (through motors), or sound energy (through speakers).
Electrical energy can be changed into many different forms such as heat, light, sound, and mechanical energy through various devices and processes.
has a washing machine changed of affected society?
Just about any: light, sound, heat, linear motion, rotary motion, magnetism, etc.
Silk has not changed. Society's access to its products has increased, however.
computers have changed society cause they now allow kids to look at pawn