Answer:
Check the explanation
Explanation:
The beat frequency is
df = f2 - f1
the wavelength is
lamda1 = (v/f1)
and lamda2 = (v/f2)
where v = 340 m/s,f1 = 25.0 kHz and f2 = 20.0 kHz
Here is your answer
Windmill- Wind energy - Mechanical energy- Electrical energy.
Flashlight- Chemical energy- Heat and light energy.
Microwave- Electrical- Thermal energy.
Firecrackers- Chemical- Heat, light and sound.
Bicycle- Muscular energy- Kinetic energy
Battery- Chemical- Electrical energy
Electrical- Thermal
Microwave
Chemical- Thermal
Burning of coal
Electrical- Mechanical
Electric motor
HOPE IT IS USEFUL
It is a seismograph that would be most useful.
Answer:
maybe they're gay maybe they act gay so they can be around there girl crush cause a lot of girls like to hang out around gay guys
Explanation:
Rocks is work well. It worked because it worked