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3 years ago

11

Which structures protect the cell? Check all that apply.

2 answers:

MAXImum [283]3 years ago

8 0

Answer:

cell wall and cell membrane

zimovet [89]3 years ago

6 0

Answer:

Cell wall and Cell membrane.

Explanation:

The cell membrane controls what goes in and out of the cell

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An incompressible fluid flows steadily through two pipes of diameter 0.15 m and 0.2 m which combine to discharge in a pipe of 0.

QveST [7]

Answer:

Average velocity = 1.835 m/s

Explanation:

Detailed explanation and calculation is shown in the image below

3 0

3 years ago

Based on its type of chemical bond, which of the following has the highest boiling point?

Sever21 [200]

<h3><u>Answer;</u></h3>

Potassium chloride

<h3><u>Explanation;</u></h3>

Potassium Chloride is an ionic compound and has ionic bond which is stronger than covalent bond in ethyl alcohol,water ,ammonia, and thus has the highest boiling point .
ionic bond is a type of bond that results from the transfer of electrons between metallic atoms and non-metallic atoms.

5 0

3 years ago

Given a force of 90 N and a acceleration of 30 m/s/s, what is the object’s mass?

vladimir2022 [97]

The object’s mass is 3

7 0

3 years ago

Read 2 more answers

Sum of number of protons and neutrons in the nucleus

Alina [70]

That's the "Atomic Mass" of the atom.

4 0

4 years ago

Prof. Marcia Grail, supervillain and superscientist, wishes to spy on her foes (they'll all pay!) from orbit. She wishes to be a

Sloan [31]

Answer:

563.64 m

Explanation:

Given that as per the question

x = 5 cm = 0.05 m

D = 4.2 × 107 m

d = smallest aperture size

As per the situation the solution of the smallest aperture telescope that she can get away with is below :-

We will use Rayleigh's diffraction limit which is

$d\frac{x}{D} = 1.22\lambda$

The equation will be

$d\frac{0.05}{4.2\times 10^7} = 1.22[550\times 10^{-9}]$

d = 563.64 m

So, the answer is d = 563.64 m

6 0

3 years ago