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3 years ago

Select the order in which the flow of current is listed from greatest to the least.

Physics

2 answers:

Radda [10]3 years ago

7 0

Answer:

Short circuit, closed circuit, open circuit

Art [367]3 years ago

6 0

Answer:B!

Explanation:

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A string of length 0.67 m and mass 2.0 g is held at both ends under tension. The string

ikadub [295]

Answer:

The value is $\lambda = 0.335 \ m$

Explanation:

From the question we are told that

The length of the string is $l = 0.67 \ m$

The mass is $m = 2.0 \ g = 0.002 \ kg$

The frequency produced at fourth harmonic vibration(i.e n =4 ) is $f = 700 \ Hz$

Generally the wavelength of the string is mathematically represented as

$\lambda = \frac{ 2L }{n }$

=> $\lambda = \frac{ 2 * 0.67 }{ 4 }$

=> $\lambda = 0.335 \ m$

7 0

3 years ago

If a planet has the same mass as the earth, but has twice the radius, how does the surface gravity, g, compare to g on the surfa

shepuryov [24]

Answer:

The surface gravity g of the planet is 1/4 of the surface gravity on earth.

Explanation:

Surface gravity is given by the following formula:

$g=G\frac{m}{r^{2}}$

So the gravity of both the earth and the planet is written in terms of their own radius, so we get:

$g_{E}=G\frac{m}{r_{E}^{2}}$

$g_{P}=G\frac{m}{r_{P}^{2}}$

The problem tells us the radius of the planet is twice that of the radius on earth, so:

$r_{P}=2r_{E}$

If we substituted that into the gravity of the planet equation we would end up with the following formula:

$g_{P}=G\frac{m}{(2r_{E})^{2}}$

Which yields:

$g_{P}=G\frac{m}{4r_{E}^{2}}$

So we can now compare the two gravities:

$\frac{g_{P}}{g_{E}}=\frac{G\frac{m}{4r_{E}^{2}}}{G\frac{m}{r_{E}^{2}}}$

When simplifying the ratio we end up with:

$\frac{g_{P}}{g_{E}}=\frac{1}{4}$

So the gravity acceleration on the surface of the planet is 1/4 of that on the surface of Earth.

3 0

3 years ago

Wispy, feathery clouds made mostly of ice crystals that form at high altitudes, usually above 6 kilometers.

Oliga [24]

Cirrus clouds are the clouds mostly made of ice becasue of the high altitudes

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3 years ago

a surface recieving sound is moved from it original position to a position three times farther away from the source of the sound

Delicious77 [7]

Sound intensity = 1/(r^2)

That is Sound intensity is indirectly proportional to the distance. Therefore, sound becomes 9 times less intense.

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3 years ago

While mountain biking you find you can accelerate from 0 m/s to 8 m/s in 3 seconds. What is your acceleration? Is this accelerat

Tems11 [23]

Your acceleration is approximately 2.67 m/s squared. It is lower than that of the bear, whose acceleration is 3.75 m/s squared

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3 years ago