3 years ago

Which stars have the lowest absolute brightness?

Physics

2 answers:

andrezito [222]3 years ago

8 0

I think Dwarfs, but I’m not positive

inna [77]3 years ago

8 0

Dwarf Stars, they release energy in inefficient methods, taking many trillions of years to die off, though they are still hot enough to shine dimly

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Interestingly, there have been several studies using cadavers to determine the moment of inertia of human body parts by letting

loris [4]

Answer:

0.08735 kgm²

Explanation:

m = Mass of lower leg = 5 kg

L = Length of leg = 18 cm

g = Acceleration due to gravity = 9.81 m/s²

f = Frequency = 1.6 Hz

I = Moment of inertia

Time period is given by

$T=2\pi\sqrt{\dfrac{I}{mgL}}$

Also

$T=\dfrac{1}{f}$

So,

$I=\dfrac{mgL}{(2\pi f)^2}\\\Rightarrow I=\dfrac{5\times 9.81\times 0.18}{(2\pi 1.6)^2}\\\Rightarrow I=0.08735\ kgm^2$

The moment of inertia of the lower leg is 0.08735 kgm²

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4 years ago

The ability of matter to easily combine chemically with other substances is know as?

skelet666 [1.2K]

Reactivity is the ability of matter that allows it to easily chemically combine with other substances.

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3 years ago

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A 900 kg car pushes a 2400 kg truck that has a dead battery. when the driver steps on the accelerator, the drive wheels of the c

Wewaii [24]

A)0
b)magnitude of the force on the car is 500n

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3 years ago

Determine the moment of inertia of a uniform solid sphere of mass M and radius R about an axis that is tangent to the surface of

Inessa05 [86]

Answer:

$I = \frac{7}{5}MR^2$

Explanation:

For answer this we will use the paralell axis theorem:

I= $I_{cm} + Md^2$

Where $I_{cm}$ is the moment of inertia of the center of mass, M is the mass of the sphere and d is the distance between the center of mass and the axis for rotate, then:

$I = \frac{2}{5}MR^2 +MR^2$

$I = \frac{7}{5}MR^2$

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3 years ago

Identify the energy transformation that takes when place when you apply the brakes on a bicycle.

valina [46]

Um Kinetic, mechanical, potential idk

The rider is riding the nick so kinetic then mechanical making the bike move then potential stopping the bike

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3 years ago