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3 years ago

Here's the question, help me ~

Physics

1 answer:

Elan Coil [88]3 years ago

8 0

Explanation:

here is your answer brother

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How is temperature related to the physical change of a substance

Levart [38]

Answer:

Temperature is a measure of the kinetic energy of particles in a substance. As temperature increases, the atoms or molecules in a substance gain energy. As temperature decreases, the particles lose energy. A change in the energy of particles causes a change in their arrangement. A change in the arrangement of particles can lead to a physical change.

Explanation:

Brainliest pls

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3 years ago

How long does it take for a rotating object to speed up from 15.0 to 33.3 rad/s?

Kitty [74]

(18.3) / (its angular acceleration). seconds.

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3 years ago

Astronomers have observed a small, massive object at the center of our Milky Way Galaxy. A ring of material orbits this massive

Burka [1]

Answer:

$1.91773\times 10^{37}\ kg$

Explanation:

v = Orbital speed = 130 km/s

d = Diameter = 16 ly

r = Radius = $\dfrac{d}{2}=\dfrac{16}{2}=8\ ly$

G = Gravitational constant = 6.67 × 10⁻¹¹ m³/kgs²

$1\ ly=9.461\times 10^{15}\ m$

As the centripetal force balances the gravitational energy we have the following relation

$\dfrac{GMm}{r^2}=\dfrac{mv^2}{r}\\\Rightarrow M=\dfrac{v^2r}{G}\\\Rightarrow M=\dfrac{130000^2\times 8\times 9.461\times 10^{15}}{6.67\times 10^{-11}}\\\Rightarrow M=1.91773\times 10^{37}\ kg$

Mass of the the massive object at the center of the Milky Way galaxy is $1.91773\times 10^{37}\ kg$

4 0

3 years ago

If you are the driver or owner of a vehicle which is in a crash that is your fault, and you are not insured in compliance with t

Oksi-84 [34.3K]

If a driver is at fault in an accident and is not insured by the Financial Responsibility Law then he or she may be required to pay for the damages caused to the other person's vehicle or property due to the accident before the driver at fault is given the privilege to drive again.
The Financial Responsibility Law is a law that requires drivers to prove that they have enough money saved to pay for the damages that may occur in the case of an accident.

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4 years ago

The velocity time graph of an object is shown below. How far does the object travel in the time interval t =4 s to t = 6 s?

Trava [24]

The distance covered by the object between t =4 s and t = 6 s is 4 m

Explanation:

In a velocity-time graph, the distance covered by the object represented can be found by calculating the area under the curve.

Therefore, the distance covered by the object between t = 4 s and t = 6 s is the area under the curve between 4 s and 6 s.

We see that we have to calculate the area of a triangle, with:

Base:

$b=6-4 = 2$