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2 years ago

13

How does the cell membrane work to protect the cell?

2 answers:

CaHeK987 [17]2 years ago

5 0

Explanation: The main cell membrane function is to protect the inside of a cell. While not as thick or sturdy as the cell wall found in plant cells, the cell membrane does help do work related to the structure, function, and regulation of the body's explanation of the most important literary devices and how they're used. HOPED THIS HELPED! :P

LenKa [72]2 years ago

3 0

It forms a protective and adaptive barrier around a cell and this keeps various bacterial and viral intruders out. They also help in keeping cell systems inside the cell. The shell absorbs viruses and bacteria for nutrients when they do not have a certain strand to get inside the cell or trick it otherwise. Hope this helped!

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An 89 kg man drops from rest on a diving board −3.1 m above the surface of the water and comes to rest 0.5 s after reaching the

OLga [1]

To solve this problem we will use the linear motion kinematic equations, for which the change of speed squared with the acceleration and the change of position. The acceleration in this case will be the same given by gravity, so our values would be given as,

$m= 89 kg\\x = 3.1 m\\t = 0.5s\\a = g = 9.8m/s^2$

Through the aforementioned formula we will have to

$v_f^2-v_i^2 = 2ax$

The particulate part of the rest, so the final speed would be

$v_f^2 = 2gx$

$v_f=\sqrt{2(9.8)(3.1)}$

$v_f = 7.79m/s$

Now from Newton's second law we know that

$F = ma$

Here,

m = mass

a = acceleration, which can also be written as a function of velocity and time, then

$F = m\frac{dv}{dt}$

Replacing we have that,

$F = (89)\frac{7.79}{0.5}$

$F = 1386.62N$

Therefore the force that the water exert on the man is 1386.62

3 0

3 years ago

Given a force of 88n and an acceleration of 4m/s2 what is the mass?

Hitman42 [59]

F=ma
m=F/a = 88/4 = 22 kg

5 0

2 years ago

Read 2 more answers

allochka39001 [22]

Answer:

Ruko zara kuch Time dedo na please

3 0

2 years ago

Which phenomenon would cease to exist in the absence of this axial tilt?

konstantin123 [22]

If the Earth didn't tilt then we wouldn't have seasons.

8 0

2 years ago

A 44.0 kg uniform rod 4.90 m long is attached to a wall with a hinge at one end. The rod is held in a horizontal position by a w

pychu [463]

Answer:

x ≤ 3.6913 m

Explanation:

Given

Mrod = 44.0 kg

L = 4.90 m

Tmax = 1450 N

Mman = 69 kg

A: left end of the rod

B: right end of the rod

x = distance from the left end to the man

If we take torques around the left end as follows

∑τ = 0 ⇒ - Wrod*(L/2) - Wman*x + T*Sin 30º*L = 0

⇒ - (Mrod*g)*(L/2) - (Mman*g)*x + Tmax*Sin 30º*L = 0

⇒ - (44*9.8)*(4.9/2) - (69*9.8)*x + (1450)*(0.5)*(4.9) = 0

⇒ x ≤ 3.6913 m

4 0

2 years ago