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tekilochka [14]
4 years ago
13

What does it mean to say that momentum is conserved?

Physics
1 answer:
balu736 [363]4 years ago
8 0
The momentum of two or more objects during collisions is not lost nor gained
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Why is an air mass unlikely to form over the rocky mountains of north america?
Shkiper50 [21]
The mountains can and will block airflow from higher pressure systems that come in from a coast and won't combine to nake storms
3 0
3 years ago
Which of the following describes glass?​
kenny6666 [7]

Answer:

is there any choice? in this question?

8 0
4 years ago
In the solar panel system presented in the video, which of the following was necessary to generate usable electrical current for
anastassius [24]

Answer:

A and B are both requirements for a solar panel to generate usable current at home.

Explanation:

Solar panel operates through a group of cells, where each one of them captures/convert electrons making them move from one polarised region to another. The excited electrons can move from a region in excess of electrons (p region) to a region with a lack of electrons (n region).  

This physical effect of electron moving from one side to another creates what we know as current flow.

This current flow from a solar panel does not vary with time in a determined frequency, so it's constant. This is the definition of a DC current. Since the household devices work with AC (variable sinusoidal current Alternate Current) a converter DC to AC is required.

Due to the fact that the solar panels only operate in the day when they recibe direct sunlight, there is the need to have batteries to store the energy for the night and the times where the sunlight is not enough to provide enough electron flow.

7 0
4 years ago
How far apart are two conducting plates that have an electric field strength of 8.53 x 103 V/m between them, if their potential
sleet_krkn [62]

Answer:

d=2.7m

Explanation:

From the question we are told that:

Electric Field strength E=8.53 * 10^3 V/m

Potential difference is V= 23.0 kV

Generally the equation for distance is mathematically given by

d=\frac{V}{E}

d=\frac{23.0*10^3}{8.53 * 10^3 V/m}

d=2.7m

5 0
3 years ago
Find the wavelength λ of the 80.0-khz wave emitted by the bat. express your answer in millimeters.
vfiekz [6]

Answer:

4.29 millimeters

Explanation:

Bats emit ultrasound waves: in air, ultrasound waves travel at a speed of

v=343 m/s

The frequency of the waves emitted by this bat is:

f=80.0 kHz = 80,000 Hz

Therefore we can find the wavelength of the wave emitted by the bat by using the relationship between speed, frequency and wavelength:

\lambda=\frac{v}{f}=\frac{343 m/s}{80,000 Hz}=4.29\cdot 10^{-3} m=4.29 mm

4 0
3 years ago
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