2 years ago

PLEASE HELP PLS ITS DUE IN 10 MINUTES!!

Physics

1 answer:

timurjin [86]2 years ago

4 0

Answer:

I AM SO SORRY

but here is the answer

Explanation:

20 j

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svet-max [94.6K]

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3 years ago

State the law of conversation of energy in your own words. Give an example of a situation that you have either encountered or kn

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Một tải có điện trở R = 19ohm đấu vào nguồn điện một chiều có E = 100V,

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2 years ago

You stand on a frictionless platform that is rotating with an angular speed of 5.1 rev/s. Your arms are outstretched, and you ho

timurjin [86]

Answer:

$\omega'=19.419\ rev.s^{-1}$

Explanation:

Given:

angular speed of rotation of friction-less platform, $\omega=5.1\ rev.s^{-1}$

moment of inertia with extended weight, $I=9.9\ kg.m^2$

moment of inertia with contracted weight, $I'=2.6\ kg.m^2$

<u>Now we use the law of conservation of angular momentum:</u>

$I.\omega=I'.\omega'$

$9.9\times 5.1=2.6\times \omega'$

$\omega'=19.419\ rev.s^{-1}$

The angular speed becomes faster as the mass is contracted radially near to the axis of rotation.

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3 years ago

Explain the intermittent reinforcement schedules in your own words

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In behaviorism, Intermittent Reinforcement is a conditioning schedule in which a reward or punishment (reinforcement) is not administered every time the desired response is performed. ... On an intermittent reinforcement schedule the mouse would only receive food every few times (it is typically random and unpredictable).

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