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2 years ago

Help me with thisssssm= 5kgl= 10ml¹= 1ml²= 2mT¹, T² =??

Physics

1 answer:

Naddik [55]2 years ago

6 0

Answer:

18 1/2 po

Explanation:

yan po answer correct me if im wrong

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What causes a roller coaster to "lose" energy and stop? What force does it lose energy to? Give a detailed explanation that is e

Zarrin [17]

Roller coasters work by utilizing its potential energy. Potential energy is "lost" as the cars lose height, subsequently gaining kinetic energy as revealed by increased speeds (and loop the loop). As the cars of the roller coaster course through the changing heights, it constantly swaps between potential and kinetic energy. Theoretically, this process could be endless. However, energy is continually "lost" because of dissipative forces such as friction and air resistance.

5 0

3 years ago

The angular velocity of a 755-g wheel 15.0 cm in diameter is given by the equation ω(t) = (2.00 rad/s2)t + (1.00 rad/s4)t 3. (a)

Lunna [17]

Answer:

The number of radians turned by the wheel in 2s is $\theta= 8\ radians$

The angular acceleration is $\alpha =14 rad/s^2$

Explanation:

The angular velocity is given as

$w(t) = (2.00 \ rda/s^2)t + (1.00 rad /s^4)t^3$

Now generally the integral of angular velocity gives angular displacement

So integrating the equation of angular velocity through the limit 0 to 2 will gives us the angular displacement for 2 sec

This is mathematically evaluated as

$\theta(t ) = \int\limits^2_0 {2t + t^3} \, dt$

$= [\frac{2t^2}{2} + \frac{t^4}{4}] \left\{ 2} \atop {0}} \right.$

$= [\frac{2(2^2)}{2} + \frac{2^4}{4}] - 0$

$= 4 +4$

$\theta= 8\ radians$

Now generally the derivative of angular velocity gives angular acceleration

So the value of the derivative of angular velocity equation at t= 2 gives us the angular acceleration

This is mathematically evaluated as

$\frac{dw}{dt} = \alpha (t) = 2 + 3t^2$

so at t=2

$\alpha (2) = 2 +3(2)^2$

$\alpha =14 rad/s^2$

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2 years ago

What are scientists who study the forces and shape of the earth called?

oee [108]

The scientists that study the forces and shape of the earth is called geologist.

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3 years ago

What is the SI unit for moment

natali 33 [55]

Answer:

Newton Metre

Explanation:

8 0

3 years ago

You grab a hot cookie sheet out of the oven this is an example of ______ energy transfer.

Maru [420]

I would say Conduction because you are touching the cookie sheet, even though it is hot (so heat) you are physically touching it so it would not be radiation

6 0

3 years ago

Help me with thisssssm= 5kgl= 10ml¹= 1ml²= 2mT¹, T² =??​

Help me with thisssssm= 5kgl= 10ml¹= 1ml²= 2mT¹, T² =??