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MaRussiya [10]
3 years ago
13

What is the theorem that says that impulse equals change in momentum

Physics
2 answers:
Marysya12 [62]3 years ago
8 0
The impulse-momentum theorem

masya89 [10]3 years ago
3 0

Answer:

<u><em>The answer is</em></u>: <u>The impulse-momentum theorem.</u>

<u />

Explanation:

The mechanical impulse is a consequence of a force acting on a body and modifying its state of motion. The amount of movement characterizes the state of movement of the body.

<em>This equivalence is known as the theorem impulse-momentum. </em>

<u><em>The answer is</em></u>: <u>The impulse-momentum theorem.</u>

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To measure one wavelength, you would measure the distance between
spin [16.1K]

Answer:

the answer would be A and B

3 0
4 years ago
39.Explain the working mechanism of a mercury barometer.
alina1380 [7]
One end is sealed to prevent air from disturbing the scale and measures. Therefore, a Mercury Barometer works on the principle of balancing the atmospheric pressure with the volume of mercury present in the device
7 0
3 years ago
Scientists discovered that the level of deuterium in comets forming in the Kuiper Belt is nearly identical to the level found in
malfutka [58]

Options:

  • The impact of Earth’s gravity on the decay rate of deuterium is the same as the impact of microgravity.  
  • Most of the water that forms the oceans of Earth arrived by way of impacts with Kuiper Belt comets.  
  • Most comets formed from deuterium-based water that was stripped away from early Earth by solar radiation.

Answer:

<u>Most of the water that forms the oceans of Earth arrived by way of impacts with Kuiper Belt comets.</u>

Explanation:

Note, a comet is a celestial body made of ice which releases gases when it orbits close to the Sun. Deuterium is a type of element which can be found in comets and in our oceans on earth. Deuterium is considered an isotope of hydrogen.

Hence, because of the similarities between the Deuterium and Hydrogen, some scientists promote the theory that most of the water that forms on oceans of the earth<em> likely</em> arrived by the impact with Kuiper Belt comets.

3 0
3 years ago
A hollow conducting sphere with an outer radius of 0.295 m and an inner radius of 0.200 m has a uniform surface charge density o
IrinaK [193]

Answer:

a. 6.032\times10^{-6}C/m^2

b.6.816\times10^5N/C

Explanation:

#Apply  surface charge density, electric field, and Gauss law to solve:

a. Surface charge density is defined as charge per area denoted as \sigma

\sigma=\frac{Q}{4\pi r_{out}^2}, and the strength of the electric field outside the sphere E=\frac{\sigma _{new}}{\epsilon _o}

Using Gauss Law, total electric flux out of a closed surface is equal to the total charge enclosed divided by the permittivity.

\phi=\frac{Q_{enclosed}}{\epsilon_o}\\\\\sigma=\frac{Q}{4\pi r_{out}^2}\\\\\sigma=\frac{0.370\times 10^{-6}}{4\pi \times (0.295m)^2}\\\\=3.383\times10^{-7}C/m^2  #surface charge outside sphere.

\sigma_{new}=\sigma_{s}-\sigma\\\\\sigma_{new}=6.37\times10^{-6}C/m^2-3.383\times10^{-7}C/m^2\\\\\sigma_{new}=6.032\times10^{-6}C/m^2

Hence, the new charge density on the outside of the sphere is 6.032\times10^{-6}C/m^2

b. The strength of the electric field just outside the sphere is calculated as:

From a above, we know the new surface charge to be 6.032\times10^{-6}C/m^2,

E=\frac{\sigma _{new}}{\epsilon _o}\\\\=\frac{6.032\times10^{-6}C/m^2}{\epsilon _o}\\\\\epsilon _o=8.85\times10^{-12}C^2/N.m^2\\\\E=\frac{6.032\times10^{-6}C/m^2}{8.85\times10^{-12}C^2/N.m^2}\\\\E=6.816\times10^5N/C

Hence, the strength of the electric field just outside the sphere is 6.816\times10^5N/C

5 0
3 years ago
Which is an example of current electricity
Reil [10]

Answer:

A or B you choose

Explanation:

This is called current electricity or an electric current. A lightning bolt is one example of an electric current, although it does not last very long. Electric currents are also involved in powering all the electrical appliances that you use, from washing machines to flashlights and from telephones to MP3 players.

what is an electrical current, amp, ampere Current is the flow of electrons. When a circuit is closed then a current of electrons can flow and when a circuit is open then no current can flow. We can measure the flow of electrons just like you can measure the flow of water through a pipe.

4 0
3 years ago
Read 2 more answers
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