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3 years ago

A cell is _______ if it lacks a nucleus and membrane-bound organelles.

Physics

2 answers:

GREYUIT [131]3 years ago

7 0

B. prokaryotic because prokaryotic cells lack a nucleus and membrane-bound structures.

N76 [4]3 years ago

4 0

Answer: The correct answer is Option B.

Explanation:

For the given options:

Option A: Autotrophic organisms are defined as the organisms which produce their own food for survival. For Example: Green plants

Option B: Prokaryotic organisms are a unicellcular organisms which lack a membrane bound organelles like mitochondria, nucleus etc.. For Example: Bacteria.

Option C: Eukaryotic organisms are multicellcular organisms which have membrane bound organelles like mitochondria, nucleus etc.. For Example: Human beings.

Option D: Heterotrophic organisms are defined as the organisms which do not produce their own food. For Example: Tigers, Lions etc..

Hence, the correct answer is Option B.

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In which direction does a bag at rest move when a force of 20 newtons is applied from the right?

worty [1.4K]

Answer:

in the direction of the applied force

Explanation:

8 0

4 years ago

Magnet A has twice the magnetic field strength of magnet B and pulls on magnet B with a force of 100 N. The amount of force that

son4ous [18]

The force exerted by the magnetic in terms of the magnetic field is,

$F\propto B$

Where B is the magnetic fied strength and F is the force.

Thus, if the magnetic A has twice magnetic field strength than the magnet B,

Then,

$B_A=2B_B$

Thus, the force exerted by the magnet B is,

$\begin{gathered} F_B\propto B_B \\ F_B\propto\frac{B_A}{2} \\ F_B=\frac{F_A}{2} \\ F_B=\frac{100}{2} \\ F_B=50\text{ N} \end{gathered}$

Thus, the force exerted by the magnet B on magnet A is 50 N.

The force exerted by the magnet A exerts on the magnet B is exactly 100 N as given.

Hence, the option B is the correct answer.

3 0

1 year ago

Ditto sound waves espace room answers please I need this urgently

lord [1]

The actual question should be did the sound waves escape room?

Yes they can escape the room

Sound always needs a medium to travel through
If you close the room form all where that even air can't go outside you will be able to hear no sound coming from room .

6 0

2 years ago

What force must the worker exert to get the box moving & what force must the worker exert to accelerate the box at 0.1 meter

photoshop1234 [79]

Since static friction is the minimum force required to just start the motion of a stationary object.

Here if we need to start an object from rest then we required F = 700 N

So for the first part of the above problem Force will be F = 700 N

Now if the box is already moving then we will have to use kinetic friction force between box and floor

now we can write the equation of net force as

$F - F_k = m*a$