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Lina20 [59]
3 years ago
12

A 5.00 kg ball is moving at 4.0 m/s to the right and a 6.00 kg ball is moving at 3.00 m/s to the left. The total momentum of the

system is
Physics
1 answer:
Drupady [299]3 years ago
6 0

Answer:

38Kgm/s

Explanation:

Momentum (p) = mass (m) × velocity (v)

Total momentum is the sum of all the momenta of each object in a system. That is:

Total momentum = {m1v1} + {m2v2}

Where;

m1 = mass of ball 1 = 5kg

v1 = velocity of ball 1 = 4m/s

m2 = mass of ball 2 = 6kg

v2 = velocity of ball 2 = 3m/s

Total momentum = {5 × 4} + {6 × 3}

Total momentum = {20} + {18}

Total momentum = 38Kgm/s

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A tube 1.20 m long is closed at one end. A stretched wire is placed near the open end. The wire is 0.350 m long and has a mass o
Ksju [112]

Answer:

71.4583 Hz

67.9064 N

Explanation:

L = Length of tube = 1.2 m

l = Length of wire = 0.35 m

m = Mass of wire = 9.5 g

v = Speed of sound in air = 343 m/s

The fundamental frequency of the tube (closed at one end) is given by

f=\frac{v}{4L}\\\Rightarrow f=\frac{343}{4\times 1.2}\\\Rightarrow f=71.4583\ Hz

The fundamental frequency of the wire and tube is equal so he fundamental frequency of the wire is 71.4583 Hz

The linear density of the wire is

\mu=\frac{m}{l}\\\Rightarrow \mu=\frac{9.5\times 10^{-3}}{0.35}\\\Rightarrow \mu=0.02714\ kg/m

The fundamental frequency of the wire is given by

f=\frac{1}{2l}\sqrt{\frac{T}{\mu}}\\\Rightarrow f^2=\frac{1}{4l^2}\frac{T}{\mu}\\\Rightarrow T=f^2\mu 4l^2\\\Rightarrow T=71.4583^2\times 0.02714\times 4\times 0.35^2\\\Rightarrow T=67.9064\ N

The tension in the wire is 67.9064 N

7 0
3 years ago
Which type of storm is measured by the fujita scale?
Serggg [28]
It's used for the intensity of a tornado
3 0
3 years ago
Read 2 more answers
if a tent is touched with a finger on inner surface , when it is raining , it allows the rain water to leak through. give a reas
Nadusha1986 [10]

Explanation:

When water vapor in the air comes into contact with something cool, like the ceiling of a tent, its molecules slow down and get closer together. When that happens, the gaseous water vapor turns back into liquid water droplets. That's condensation!

7 0
2 years ago
Color depends on what characteristic of light?
vagabundo [1.1K]

Answer:

a) its frequency

Explanation:

The color of visible light depends only on its frequency, not on the amplitude. In fact, the visible light spectrum can be classified into different colors according to the different frequencies:

Violet: 680-790 THz

Blue: 620-680 THz

Cyan: 600-620 THz

Green: 530-600 THz

Yellow: 510-530 THz

Orange: 480-510 THz

Red: 405-480 THz

And the color of the light has nothing to do with the amplitude of the wave. Therefore, the correct answer is

a) its frequency

7 0
4 years ago
PLEASE HELLLP what's the chemical equation for hydrogen and balance it. ​
Oksanka [162]

Answer:

Chemical reactions are represented on paper by chemical equations. For example, hydrogen gas (H2) can react (burn) with oxygen gas (O2) to form water (H20). The chemical equation for this reaction is written as: The '+' is read as 'reacts with' and the arrow '' means 'produces'.

Explanation:

hope this helps

3 0
3 years ago
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