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Shkiper50 [21]
3 years ago
12

Which part of the ocean is deepest?

Physics
1 answer:
vazorg [7]3 years ago
6 0

Answer:

The oceans' deepest area is the Mariana Trench, also called the Marianas Trench, which is in the western part of the Pacific Ocean. The trench is 1,554 miles long and 44 miles wide, or 120 times larger than the Grand Canyon. According to the National Oceanic and Atmospheric Administration, the trench is almost 5 times wider than it is deep.

Explanation:

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How to prove formula for volume of a sphere ?
atroni [7]

Answer:

The volume of radius is   \frac{4}{3} × π × radius³  Proved

Explanation:

Given as :

We know that volume of sphere is v = \frac{4}{3} × π × radius³

Or, v =  \frac{4}{3} × π × r³

Let prove the volume of sphere

So, From the figure of sphere

At the height of z , there is shaded disk with radius x

Let Find the area of triangle with side x , z , r

<u>From Pythagorean theorem</u>

x² + z² = r²

Or, x² = r² -  z²

Or, x = \sqrt{r^{2}-z^{2}  }

Now, Area of shaded disk = Area = π × x²

Where x is the radius of disk

Or, Area of shaded disk = π × (\sqrt{r^{2}-z^{2}  }) ²

∴ Area of shaded disk = π × (r² - z²)

Again

<u>If we calculate the area of all horizontal disk, we can get the volume of sphere</u>

So, we simply integrate the area of all disk from - r to + r

i.e volume = \int_{-r}^{r} \Pi(r^{2}-z^{2} )dz

Or, v = \int_{-r}^{r} \Pi r^{2}dz - \int_{-r}^{r} \Pi z^{2}dz

Or, v = π r² (r + r) -  π \frac{r^{3} -(-r)^{3})}{3}

Or, v = π r² (r + r) - π \frac{2r^{3}}{3}

Or, v = 2πr³ - π \frac{2r^{3}}{3}

Or, v =  2πr³ (\frac{3-1}{3})

Or, v = 2πr³ × \frac{2}{3}

∴ v =   \frac{4}{3} × π × r³

Hence, The volume of radius is   \frac{4}{3} × π × radius³  Proved . Answer

5 0
3 years ago
When a tuning fork vibrates over an open pipe and the air in the pipe starts to vibrate, the vibrations in the tube are caused b
defon

Answer:

correct option is A. Resonance

Explanation:

solution

vibrations in the tube are caused by the Resonance because Resonance cause of sounds production in the musical instrument

As if resonance ( hollow cylindrical tube) immerse in  cylinder of water and force in to vibration by tuning fork

As tines of tuning fork vibrate at natural frequency and it create sound wave that impinged up on opening of resonance tube

so correct option is A. Resonance

8 0
4 years ago
A meter stick is found to balance at the 49.7-cm mark when placed on a fulcrum. When a 41.0-gram mass is attached at the 23.0-cm
aev [14]

Answer:

mass of the meter stick=0.063 kg

or

mass of the meter stick=63.3 g

Explanation:

Given data

m₁=41.0g=0.041kg

r₁=(39.2 - 23)cm

r₂=(49.7 - 39.2)cm

g=9.8 m/s²

To find

m₂(mass of the meter stick)

Solution

The clockwise and counter-clockwise torques must be equal if the meter stick   is in rotational equilibrium

Torque_{cw}=Torque_{cw}\\F_{1}r_{1}=F_{2}r_{2}\\  m_{1}gr_{1}=m_{2}gr_{2}\\(0.041kg)(9.8m/s^{2} )(0.392m-0.23m)=m_{2}(9.8m/s^{2})(0.497m-0.392m)\\0.0651N.m=1.029m_{2}\\m_{2}=0.063 kg\\or\\m_{2}=63.3g

5 0
3 years ago
samantha a high school teacher wants to spend more time with her children and is looking for a job in her field. what would be a
sp2606 [1]

She could look for an online job or a job she can work at from home.

3 0
3 years ago
Read 2 more answers
The force in Newtons on a particle directed along the x-axis is given by F(x)=exp(−(x/2)+6) for x≥0 where x is in meters. The pa
HACTEHA [7]

To find the work done on the particle, the following is the solution:

Dw = F dx

W = integral over the path ( F(x) dx)

W = integral from 0 to 1 (e^(-x/5 + 5) dx)

W = -5e^(-x/5 + 5) from 0 to 1

W = 135 J

The work done is 135 J.

3 0
3 years ago
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