3 years ago

What does the Nucleolus do?

Physics

2 answers:

SCORPION-xisa [38]3 years ago

8 0

Answer:

A) Makes ribosomes

Explanation:

The nucleolus assembles the ribosomes of a cell, which are then sent to the cytoplasm to be used.

SCORPION-xisa [38]3 years ago

6 0

Answer:

Explanation:

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An object is stopped at point ‘a’, and travels to point ‘c’ in 8s. What was its acceleration?

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In SI units, its acceleration is (the distance from A to C) / 32 m/s^2 .

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3 years ago

A 270,000 kg rocket in gravity -free space expels 270 kg of fuel by exerting a force of 360 N on it. Find the magnitude of the a

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F = m a
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In physics class, Carrie learns that a force, F, is equal to the mass of an object, m, times its acceleration, a. She writes the

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2.2 m/s^2

Explanation:

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3 years ago

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3 years ago

What will be the final temperature if a 4.00 g silver ring at 41.0◦C if it gives off 18.0 J of heat to the surroundings? The spe

Eduardwww [97]

Answer:

Final temperature, $T_f=21.85^{\circ}$

Explanation:

Given that,

Mass of silver ring, m = 4 g

Initial temperature, $T_i=41^{\circ}C$

Heat released, Q = -18 J (as heat is released)

Specific heat capacity of silver, $c=0.235\ J/g\ C$

To find,

Final temperature

Solution,

The expression for the specific heat is given by :

$Q=mc\Delta T$

$Q=mc(T_f-T_i)$

$T_f=\dfrac{-Q}{mc}+T_i$

$T_f=\dfrac{-18}{4\times 0.235}+41$

$T_f=21.85^{\circ}$

So, the final temperature of silver is 21.85 degrees Celsius.

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3 years ago