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Hunter-Best [27]
3 years ago
7

Question: An increased number of rod cells increase the ability to see, A. during the day B. at night C. underwater or D. colors

?

Physics
2 answers:
Fynjy0 [20]3 years ago
8 0
B- at night

In eyes of the humans, and many other animals there are two types of receptors, the rods, and the cones. The cones have an important role in color vision and they possess different types of pigment which enable color vision.
On the other hand, the rods are more sensitive to light, and they are responsible for black and white vision.
Therefore, an increase in the number of rods can enable the animal to see betther in the dark.
bearhunter [10]3 years ago
4 0
The answer is B. at night
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A load of 1 kW takes a current of 5 A from a 230 V supply. Calculate the power factor.
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Answer:

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Explanation:

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Computation:

Power factor = watts / (V)(I)

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8 0
3 years ago
A 22-g bullet traveling 265 m/s penetrates a 1.9 kg block of wood and emerges going 125 m/s .
Usimov [2.4K]

The body moves at a velocity of 1.62m/s after the bullet emerges.

<h3>Given:</h3>

Mass of bullet, m_1 = 22g

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Mass of the block, m_2 = 1.9 kg

Velocity of bullet , v_1 = 265 m/s

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According to the law of collision which states that the momentum of the body before the collision is equal to the momentum of the body after the collision.

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v^{'}_2=?

The formula for calculating the collision of a body is expressed as:

p = mv

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v is the velocity of the body

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Substitute the given parameters into the formula as shown:

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brainly.com/question/25121535

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