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babunello [35]
3 years ago
11

Two whistles blow at the same time. The first whistle has a frequency twice that of the second whistle (it is a higher pitch). W

hich sound will reach you first?
Physics
1 answer:
suter [353]3 years ago
7 0

Answer:

the first one

Explanation:

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Wooden handles on knives do not require maintenance.<br> TRUE<br> FALSE
Olenka [21]

Answer: false

Explanation:

You have to make sure it doesn’t stay wet

5 0
3 years ago
You might have heard the phrase ‘hot air rises'. Name the process of transferring energy using moving gas or liquid.
Blizzard [7]

Answer: Convection

Explantion: Convection occurs when particles with a lot of heat energy in a liquid or gas move and take the place of particles with less heat energy. Heat energy is transferred from hot places to cooler places by convection

4 0
3 years ago
What is the name of the system for conducting a scientific investigation?
Slav-nsk [51]

Answer:

i beleive it is 2

Explanation:

5 0
3 years ago
Two parallel plates have equal and opposite charges. When the space between the plates is evacuated, the electric field is E= 3.
Nana76 [90]

Answer:

\sigma_i=1.06*10^{-6}C

Explanation:

When the space is filled with dielectric, an induced opposite sign charge appears on each surface of the dielectric. This induced charge has a charge density related to the charge density on the electrodes as follows:

\sigma_i=\sigma(1-\frac{E}{E_0})

Where E is the eletric field with dielectric and E_0 is the electric filed without it. Recall that \sigma is given by:

\sigma=\epsilon_0E_0

Replacing this and solving:

\sigma_i=\epsilon_0E_0(1-\frac{E}{E_0})\\\sigma_i=8.85*10^{-12}\frac{C^2}{N\cdot m^2}*3.40*10^5\frac{V}{m}*(1-\frac{2.20*10^5\frac{V}{m}}{3.40*10^5\frac{V}{m}})\\\sigma_i=1.06*10^{-6}C

3 0
3 years ago
What is the best example of the wave phenomenon called transmission
vazorg [7]
I'm not sure what the "best" example of transmission is, but any transparent materials with light shone through them are transmitting light.
8 0
4 years ago
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