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blondinia [14]
3 years ago
13

In order to distinguish between wavelengths independent of light intensity, one must have at least _____visual pigment(s).?

Physics
1 answer:
timurjin [86]3 years ago
6 0
Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
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How does a lid slow down evaporation cooling??
iris [78.8K]

Answer:

It reflects the gas from entering the air and the other gases from the bottom, pushes the top gases that can't get through making it slow down, and eventually stop.

Explanation:

Ex: When you go on a slide and sit at the bottom, the other kids go down and stop behind you. So does the next kid and the next stopping the process of kids going down the slide.

4 0
3 years ago
An automobile engineer is revising a design for a conical chamber that was originally specified to be 12 inches long with a circ
Sidana [21]
The volume of the cylinder is: 
V= pi* (r^2) * h. 

So the volume is = pi * (5.7/2)^2 * 12 = 306.2 in^2. 
Since it is scaled up by the factor of 1.5, so we have to multiply each dimension with 1.5. 
That means the diameter will be 8.55 and the height will be 18. so the scaled up volume will be

=pi * ((5.7*1.5)/2)^2 * (12*1.5)

The answer then would have to be 1033.5


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4 years ago
A football player runs directly down the field for 45m before turning to the right at an angle of 25 degrees from his original d
Fiesta28 [93]

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5 0
3 years ago
A bullet of .05 kg is fired into a block of wood. Knowing that the bullet left the gun with a muzzle velocity of 350. m/s, and t
Lunna [17]

We know, Impulse of a body is change in momentum.

Also, the final velocity of wood block is 0 m/s.

So, Impulse = Final Momentum - Initial Momentum

Impulse = 0 - ( 0.05 kg × 350 m/s )

Impulse = - 17.5 kg m/s

Therefore, the impulse exerted by the wood on the bullet is -17.5 kg m/s .

6 0
3 years ago
The aluminum wire in a high-voltage transmission line is 2.7 cm in diameter. It is designed to carry a current of 1100 A. What i
marissa [1.9K]

Answer:

1660 V

Explanation:

Resistance should be determined and then voltage drop across the power line can be determined.

R = ρ L /A  

Here ρ = Resistivity of aluminum = 2.7\times 10^{-8}\Omega m

L = length = 32 km = 32,000 m

Area of cross section = A = π r² = π (0.027/2)² = 0.00057255 m²

Resistance = R =

(2.7\times 10^{-8}\Omega m (32,000)/(0.00057255) = 1.5090 Ohms.

Voltage drop = V = I R = (1100)(1.5090) = 1659.9 V.

(If resistivity value is different, then the resistance will be different and hence final answer for voltage will also vary ).

4 0
3 years ago
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