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3 years ago

What happens to the force of gravity between two masses if they are moved closer?

Physics

1 answer:

Nimfa-mama [501]3 years ago

7 0

Answer:

La piedra empieza a volar

Explanation:

Por la gravedad

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1) A piano tuner is testing a wire currently under 2000 N tension. The wire is 1.5 m long and has a mass of 20 g. If the tuner's

m_a_m_a [10]

Answer:

N = 77

Explanation:

1) As we know that Tension in the wire is given as

T = 2000 N

now mass per unit length of the wire is given as

$\frac{m}{L} = \frac{20 \times 10^{-3} kg}{1.5 m}$

$\frac{m}{L} = 0.013 kg/m$

Now fundamental frequency is given as

$f_o = \frac{1}{2L}\sqrt{\frac{T}{m/L}}$

$f_o = \frac{1}{2\times 1.5}\sqrt{\frac{2000}{0.013}}$

$f_o = 129 Hz$

now highest frequency is given as 10000 Hz

so total harmonics is given as

$N = \frac{10000}{129}$

$N = 77$

Answer:

D) 7.14 Hz

Explanation:

As we know that

speed = (frequency)(wavelength)

given that

speed = 400 m/s

wavelength = 28 m

so frequency is given as

$f = \frac{400}{28}$

$f = 14.3 Hz$

now if wavelength is doubled then we will have

$wavelength = 56 m$

new frequency will be

$f = \frac{400}{56}$

$f = 7.14 hz$

Answer:

Number of nodes = 4

A) 4

Explanation:

Number of nodes = number of harmonics + 1

so here we know that

number of harmonics = 3

Number of nodes = 3 + 1

Number of nodes = 4

Answer:

C) 35.1 Hz

Explanation:

fundamental frequency in an organ pipe closed at one end is given as

$f = \frac{v}{4L}$

here we know that

v = 345 m/s

L = 2.46 m

now we have

$f = \frac{345}{4(2.46)}$

$f = 35.1 Hz$

Answer:

A) 570

Explanation:

Number of harmonics is given as

$N = \frac{maximum :\frequency}{fundamental\: frequency}$

$N = \frac{20,000}{35.1}$

$N = 570$

Answer:

$v = 37.12 m/s$

Explanation:

For fundamental frequency we know that

$f_o = \frac{v}{2L}$

here we know that

$f_o = 58 Hz$

$L = 32 cm$

now we have

$58 = \frac{v}{2(0.32)}$

$v = 37.12 m/s$

7 0

3 years ago

Hey hi can someone help?

Alecsey [184]

Answer:

2k25%*degrees

Explanation:

I think so

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3 years ago

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A vertical black line crossed by a horizontal yellow line. A blue arrow strikes the crossing point from above at an angle from h

Alex777 [14]

Answer:

Explanation:

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3 years ago

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An astronaut of mass 72 kg lands on Moon. What is the mass of the astronaut on Moon?

pishuonlain [190]

W=mg=72×1.62=116.64

Explanation:

The gravity of the moon is 1.62

So,the answer is 116.64.

8 0

3 years ago

Giving brainlist down below pick one form of government that is easy to do

Ostrovityanka [42]

Answer:

Representative Democracy.

Explanation:

It is simple and easy because you choose a representative to make choices for the good of your people. It is much simpler then all the rest.

5 0

3 years ago