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antoniya [11.8K]
3 years ago
7

Active transport is a process that uses energy to move materials through a

Physics
1 answer:
Nat2105 [25]3 years ago
5 0
Not good with this but I’m gonna guess cell membrane?
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The fastest possible conduction velocity of action potentials is observed in ________.
irga5000 [103]
Thick, myelinated neurons
7 0
4 years ago
The electric field strength E is measured as:
soldi70 [24.7K]
The correct answer is
<span>force per unit charge.

In fact, the electric field strength is defined as the electric force per unit charge experienced by a positive test charge located in the electric field. In formula:
</span>E= \frac{F}{q}
where
E is the electric field strength
F is the electric force experienced by the charge
q is the positive test charge.
4 0
3 years ago
What part of the electromagnetic spectrum can be seen by humans?
Oxana [17]

Answer:

Visible light

Explanation:

Electromagnetic spectrum is the classification of the electromagnetic waves based on their frequency and wavelength. In order from the shortest to the longest wavelength, we have

Gamma rays

X-rays

Ultraviolet

Visible light

Infrared radiation

Microwaves

Radio waves

All these waves are invisible to human eye, except for the visible light part. Visible light is perceived as a different color by the human eye, depending on the wavelength of the light. In particular, we have:

Violet: 380 - 450 nm

Blue: 450 - 495 nm

Green: 495 - 570 nm

Yellow: 570 nm - 590 nm

Orange: 590 nm - 620 nm

Red: 620 nm - 750 nm

4 0
3 years ago
If the density of pure copper is 8.89g/cm3(at 20•c),calculate the volume of a copper brick with a mass of 4.5kg
oksano4ka [1.4K]

The volume of a substance can directly be calculated by the ratio of mass and density. That is:

volume = mass / density

 

Since the mass is 4.5 kg or 4500 grams, therefore:

volume = 4500 g / (8.89 g / cm^3)

<span>volume = 506.19 cm^3</span>

8 0
3 years ago
1. What outdoor activities do you prefer? Why? 2. What outdoor activities are you interested in, but have never tried?​
DochEvi [55]

Answer:

My favorate activies is skateboareding, and I prerfer outdoor actives.

Explanation:

3 0
3 years ago
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