1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lianna [129]
3 years ago
5

How do materials, such as nutrients and waste, pass through the cell membrane?

Physics
1 answer:
Aleks04 [339]3 years ago
4 0
Think of the cell membrane as a net and the nutrients are the perfect fit to fall through it. Where the waste is not the right size and will not fit through the holes of the net.
You might be interested in
A localized impediment to electron flow in a circuit is a:
hichkok12 [17]
This would be the definition of a resistor. These components inhibit or “resist” the flow of a current.

Hope this helps!
8 0
4 years ago
Read 2 more answers
How often does a 16-year-old need a medical evaluation from a doctor?
a_sh-v [17]

Answer:

Explanation: A

5 0
4 years ago
Read 2 more answers
A student lifts a physical science book off the table and above their head. Is there work being done?
DiKsa [7]

Answer: A force must cause a displacement in order for work to be done. A book falls off a table and free falls to the ground. Yes. This is an example of work.

Explanation:

7 0
2 years ago
The predictions of Rutherford's scattering formula failed to correspond with experimental data when the energy of the incoming a
Vera_Pavlovna [14]

Answer:

The radius of the gold nucleus is 7.1x10⁻¹⁵m

Explanation:

The nearest distance is:

r=\frac{kze^{2} }{mpV^{2} } (eq. 1)

Where

z = atomic number of gold = 79

e = electron charge = 1.6x10⁻¹⁹C

k = electrostatic constant = 9x10⁹Nm²C²

energy of the particle = 32 MeV = 5.12x10⁻¹²J

At the potential energy is zero, all the energy will be kinetic energy:

E_{k} =\frac{1}{2} m V^{2}

Where

m = 4 mp = mass of proton

5.12x10^{-12} =\frac{1}{2} *4*m_{p}* V^{2} \\m_{p}* V^{2} = 2.56x10^{-12}

Replacing in equation 1

r=\frac{9x10^{9}*79*(1.6x10^{-19})^{2}   }{2.56x10^{-12} } =7.1x10^{-15} m

8 0
3 years ago
4 what is the difference between an array's size declarator and a subscript?
Ber [7]
What is the difference between<span> a</span>size declarator<span> and a </span>subscript<span>? The </span>size declarator<span> is ... When writing a function that accepts a two-dimensional </span>array<span> as an argument, which </span>size declarator<span> must you provide in the parameter </span>for<span> the</span>array<span>? The second size ...</span>
7 0
3 years ago
Other questions:
  • A 10N force pulls to the right and friction opposes 2N. If the object is 20kg,find the acceleraton.
    9·2 answers
  • Express the number in scientific notation: -8,675,300.0
    15·1 answer
  • Which statement is equivalent to newtons first law
    9·2 answers
  • This diagram shows a ball rolling from left to right along a frictionless
    14·1 answer
  • For general projectile motion, which of the following best describes the horizontal component of a projectile's acceleration? As
    9·1 answer
  • Why cant your rocket could never reach the speed of light?
    15·1 answer
  • Never start a job without knowing the _______and_______ of the chemicals you are working with a) properties and hazards b) SDS a
    8·1 answer
  • What is a mutual attraction between the nuclei and electrons in two different atoms called?
    7·1 answer
  • Branden is an excellent student, but he is never satisfied with his grades, even though they are consistently high. Given these
    15·2 answers
  • A car is traveling at a constant speed on the highway. Its tires have a diameter of 68.0 cm and are rolling without sliding or s
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!