3 years ago

Si uno de los valores de la tabla no se visualiza en el gráfico, ¿Cómo lo encontramos?

Physics

1 answer:

ivanzaharov [21]3 years ago

6 0

No, no me habla espanol. yo soy ingles

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A girl stands on the edge of a merry-go-round of radius 1.71 m. If the merry go round uniformly accerlerates from rest to 20 rpm

Mashutka [201]

Answer:

$a = 0.53 m/s^2$

Explanation:

initially the merry go round is at rest

after 6.73 s the merry go round will accelerates to 20 rpm

so final angular speed is given as

$\omega = 2\pi f$

$\omega = 2\pi ( \frac{20}{60})$

$\omega = 2.10 rad/s$

so final tangential speed is given as

$v = r\omega$

$v = 1.71 (2.10) = 3.58 m/s$

now average acceleration of the girl is given as

$a = \frac{v_f - v_i}{\Delta t}$

$a = \frac{3.58 - 0}{6.73}$

$a = 0.53 m/s^2$

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4 years ago

A satellite system that has unique properties is the ____ satellite, which is used by governments for spying and by scientific a

agasfer [191]

Answer: Highly-elliptical-earth-orbit (heo)

Explanation: Highly-elliptical-earth-orbit (heo) satellite system has unique properties

which is used by governments for spying and by scientific agencies for observing celestial bodies. It is an extremely elongated orbit that is useful for communication satellites which creates signals between a source transmitter and a receiver at different locations on earth. They are used by government for spying, scientific agencies for observing celestial bodies, for the internet and telephone communications.

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3 years ago

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An electric current in a metal consists of moving

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The answer would be (A) Protons

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3 years ago

Today’s scientist must search through scientific journals before performing an experiment with making methodical observations wh

Natalija [7]

Answer:

in the lab

Explanation:

cause that is where scientist spend their time doing research ...

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A lifeguard on a beach observes that waves have a speed of 7 m/s and a distance of 4.6m between wave crests. what is the period

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Answer:

0.657 seconds

Explanation:

speed of wave= wavelength / time period

time period= wavelength / speed

= 4.6/7

=0.657 sec

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3 years ago