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3 years ago

32. Which sub-atomic particle has a charge of +1?

Physics

1 answer:

mestny [16]3 years ago

5 0

Answer:

Protons

Explanation:

Have a charge of +1 and a mass of 1

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Joey, whose mass is m = 36 kg, stands at rest at the outer edge of a frictionless merry-go-round with the mass M = 300 kg and th

Evgen [1.6K]

Answer:

$\omega=0.24\ rad.s^{-1}$

Explanation:

Given:

mass of person, $m=36\ kg$

mass of merry go-round, $M=300\ kg$

radius of merry go-round, $R=2\ m$

velocity of the person running, $v=4\ m.s^{-1}$

We consider merry go-round as a ring:

Now the moment of inertial of the ring is given as,

$I=M.R^2$

$I=300\times 2^2$

$I=1200\ kg.m^{-2}$

Moment of inertia of the person considering as a point mass:

$I_p=m.R^2$

$I_p=36\times 2^2$

$I_p=144\ kg.m^2$

Now according to the conservation of angular momentum:

$I.\omega=I_p.\omega_p$

where:

$\omega =$ angular velocity of the merry-go-round

$\omega_p=$ angular velocity of the person running

$1200\times \omega=144\times \frac{v}{R}$

$\omega=\frac{144}{1200} \times \frac{4}{2}$

$\omega=0.24\ rad.s^{-1}$

4 0

4 years ago

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FONTE: JBC w our tree to eat por Pirage B097 VO DED expleyo 2. How do you feel about it? (Are you happy? A little bit sad? Conte

xxTIMURxx [149]

Answer:

sorry kilqngqn kolqng ng point

Explanation:

sorry tlaga please pa heart nlang please

5 0

3 years ago

When neither air mass displaces the adjacent one, their boundary is called a(an) ____________ front.

Nataly_w [17]

Answer:

Stationary front

Explanation:

A stationary front is usually defined as a front when both the warm as well as cold front does not move and remain stationary. It is because the force exerted by both the air masses against each other is not so high to displace one another. In this case, the wind blows parallel instead of blowing perpendicular to the front.

Generally, in weather maps, the stationary front is shown by the alternate use of blue triangles and red semi-circles, where the triangle faces the warm front and the semi-circle faces the cold front.

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4 years ago

The table below shows the approximate distances of two stars from Earth.

Gemiola [76]

I think that the answer is c. good luck

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3 years ago

What number is pocahontas in the official disney princess line up?

Assoli18 [71]

Pocahontas is ranked 7th in the official Disney Princess Line-up. She is considered to be royalty as she was born to be the Chieftain’s Daughter. Unlike the original Disney Princesses, Pocahontas had two Disney Prince. She is the only Disney Princess to be inspired by a real person.

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3 years ago

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