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julia-pushkina [17]
3 years ago
11

What causes a submarine to rise and descend?

Physics
1 answer:
photoshop1234 [79]3 years ago
6 0

Answer:

When the ballast tanks are filled with air, the submarine rises to the surface because it has positive buoyancy. With water inside the tanks, the sub has negative buoyancy so it sinks deeper into the ocean.  The ballast tanks can also be used to help a submarine surface very quickly in an emergency

Explanation:

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lukranit [14]
A ray box is the answer I give
3 0
3 years ago
What is the chemical formula, how many Total atoms are present, and how many Different atoms are present? (Ex C6H12O6
lara31 [8.8K]

The chemical formula is C6H12O6 .

This is one molecule of Glucose ... the simple sugar that plants and algae make with photosynthesis, and the 'blood sugar' in human beings like you and me.

The formula tells us that each molecule is made of 6 Carbon atoms, 12 Hydrogen atoms, and 6 Oxygen atoms.

3 different elements (different kinds of atoms)

24 total atoms ... in every molecule

8 0
3 years ago
A 1.5 kg copper block is given an initial speed of3.00m/s on a
ankoles [38]

Answer:

a. 0.01 C

b. dissipated to outside environment

Explanation:

Let the specific heat of copper be 0.3846 kJ/kg-K or 384.6 J/kg-C

(a)The original kinetic energy of the block is:

E_k = \frac{mv^2}{2} = \frac{1.5*3^2}{2} = \frac{1.5*9}{2} = 6.75 J

As 85% of this kinetic energy is converted to block internal heat energy, with specific heat we can calculate the rise in temperature:

E_h = 0.85E_k = 0.85*6.75 = 5.7375 J

mc_c\Delta T = 5.7375

1.5*384.6\Delta T = 5.7375

\Delta T = \frac{5.7375}{1.5*384.6} \approx 0.01^oC

(b) the remaining 15% energy would probably be dissipated to outside environment as heat energy

6 0
3 years ago
How does the gravitational force exerted on earth by the sun with that exerted by the moon
kaheart [24]

The gravitational forces between the sun and the Earth
are about 176 times stronger than the gravitational forces
between the moon and the Earth.

For the calculation, see the answer to the other time you
posted this question.


Wow !  What does that say about the tides ?
I'm not sure just now.

6 0
4 years ago
Electromagnetic waves A. All have the same wavelength B. Do not carry energy C. Can travel through empty space D. All have the s
VARVARA [1.3K]

Electromagnetic waves can travel and carry energy through empty space.
Which is lucky, because that's how we get our heat and light from the Sun.


6 0
3 years ago
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