What is a descriptions of an animal cell's nucleus?

1 answer:

5 0

<span>The nucleus controls many of the functions of the cell(by controlling protein synthesis) and contains DNA (in chromosomes). The nucleus is surrounded by the nuclear membrane. ribosome - small organelles composed of RNA-rich cytoplasmic granules that are sites of protein synthesis.</span>

You might be interested in

Using Planck’s constant as h = 6.63 E-34 J*s, what is the wavelength of a proton with a speed of 5.00 E6 m/s? The mass of a prot

Marrrta [24]

De Broglie's identity gives the relationship between the momentum and the wavelength of a particle:
$p=mv= \frac{h}{\lambda}$
where
p is the particle momentum
m is its mass
v its velocity
h is the Planck constant
$\lambda$ is the wavelength

By re-arranging the equation, we get
$\lambda= \frac{h}{mv}$
and by using the data about the proton, given in the text, we can find the proton's wavelength:
$\lambda= \frac{h}{mv} = \frac{6.63 \cdot 10^{-34} Js}{(1.66 \cdot 10^{-27} kg)(5.00 \cdot 10^6 m/s)} =7.99 \cdot 10^{-14} m$

6 0

3 years ago

The speed of a wave on a violin A string is 288 m/s and on the G string is 128 m/s. The force exerted on the ends of the string

Katyanochek1 [597]

Answer:

$\dfrac{\mu_A}{\mu_G}=0.197$