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Scorpion4ik [409]
3 years ago
12

States that momentum cannot be created or destroyed

Physics
1 answer:
Daniel [21]3 years ago
5 0

That sounds a lot like the law of conservation of momentum.

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Difference between displacement and vector quantity
daser333 [38]

The only 'difference' is that they are different categories.

It's like asking "What's the difference between Susie and girl ?"

Or "What's the difference between Cadillac and car ?"

Displacement <em>IS</em> a vector quantity.

5 0
3 years ago
Why is speed a scaler quantity​
In-s [12.5K]

Answer:

Speed is a scalar quantity it is the rate of change in the distance travelled by an object, while velocity is a vector quantity  it is the speed of an object in a particular direction.

4 0
4 years ago
heat and pressure deep beneath Earth's surface can change any rock into A. chemical rock B. organic rock C. metamorphic rock D.
Y_Kistochka [10]
It should be a metamorphic rock as those rocks are formed due fue to heat and pressure
4 0
3 years ago
Read 2 more answers
Describe the nature of sunlight using the following: wavelength, electromagnetic spectrum, visible light, photons.
kogti [31]

Answer:

due to the effect of gravity begins thermonuclear fusion processes, in these processes energy is released in the form of electromagnetic radiation

Explanation:

The Sun is a star of great size, which due to the effect of gravity begins thermonuclear fusion processes, in these processes energy is released in the form of electromagnetic radiation.

This radiation crosses the different layers of the Sun and escapes from it in the form of light that is emitted throughout the radiation spectrum, due to the temperature reached by the Sun about 5500K the most likely radiation is around 5500 nm corresponding to the green- yellow of the visible spectrum, but the entire spectrum is emitted with different intensity according to Stefan's law

     

In quantum mechanics this spectrum can also be analyzed as the emission of particles called photons, where each one is characterized by an energy and has a moment equal to zero, the energy of these photons is related to their frequency by the Planck equation

                   E = h f

3 0
3 years ago
A rotating cylinder about 16 km long and 7.8km in diameter is designed to be used as a space colony.
Semmy [17]

Answer:

0.05 rad/s

Explanation:

7.8 km = 7800 m

For the residents inside the space cylinder to experience the same gravitation acceleration g = 9.81m/s2 on Earth, the centripetal acceleration must be the same as g

a = g

But centripetal acceleration is product of angular velocity squared and radius of rotation r

\omega^2r = 9.81

\omega^2 d/2 = 9.81

\omega^2 = \frac{2*9.81}{d} = \frac{19.62}{7800} = 0.0025

\omega = \sqrt{0.0025} = 0.05 rad/s

3 0
3 years ago
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