Native Americans who used spears to hunt were using wedges. In the third century BC, the Greek scientist Archimedes invented a way to lift water, called the Archimedes screw. It was used to water crops and to move water out of ships.
Answer:
When the airbag is activated, the chemicals produce heated nitrogen gas, which inflates the nylon bag....
hope my answer help u!!!!
Answer:
It’s cool I’d say 8/10 I guess
Explanation:
Answer:
1st Harmonic:

3rd Harmonic:

5th Harmonic:

7th Harmonic:

Explanation:
The general form to represent a complex sinusoidal waveform is given by

Where A is the amplitude in volts of the sinusoidal waveform
Where f is the frequency in cycles per second (Hz) of the sinusoidal waveform
Where
is the phase angle in radians of the sinusoidal waveform.
1st Harmonic:
We have A = 50, f = 1000 and φ = 0

3rd Harmonic:
We have A = 9, f = 3000 and φ = 0

5th Harmonic:
We have A = 6, f = 5000 and φ = 0

7th Harmonic:
We have A = 2, f = 7000 and φ = 0

Note: The even-numbered harmonics have 0 amplitude that is why they are not shown here.
Answer:


Explanation:
given data:
Diameter =





from continuity equation



![v_2 = [\frac{d_1}{d_2}]^2 v_1](https://tex.z-dn.net/?f=v_2%20%3D%20%5B%5Cfrac%7Bd_1%7D%7Bd_2%7D%5D%5E2%20v_1)
![= [\frac{0.200}{0.158}]^2 \times 100](https://tex.z-dn.net/?f=%3D%20%5B%5Cfrac%7B0.200%7D%7B0.158%7D%5D%5E2%20%5Ctimes%20100)

by energy flow equation

and q =0, w =0 for nozzle
therefore we have


but we know dh = Cp dt
hence our equation become




