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oksano4ka [1.4K]
2 years ago
15

When a kitten is exposed to an environment of just horizontal lines, the kitten?

Physics
1 answer:
kondaur [170]2 years ago
4 0
The kitten would have cortical cells that respond to horizontal lines but none to vertical lines.
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A helicopter is ascending vertically with a speed of 5.10m/s. At a height of 105m above the Earth, a package is dropped from a w
valkas [14]

Op here is another problem exactly like that. Just plug in your variables instead. And remember, time is never negative.

5 0
2 years ago
The human ear canal is about 2.6 cm long and can be regarded as a tube open at one end and closed at the eardrum. What is the fu
Ugo [173]

Answer:

f = v/λ

 = v/4*L

 = 343 / 4 (0.026)

= 3120 Hz  

8 0
3 years ago
Read 2 more answers
A sealed test tube traps 25.0 cm3 of air at a pressure of 1.00 atm and temperature of 18°C. The test tube’s stopper has a diamet
puteri [66]

Answer:

180° C

Explanation:

First we start by finding the area of the stopper.

A = πd²/4, where d = 1.5 cm = 0.015 m

A = 3.142 * 0.015² * ¼

A = 1.767*10^-4 m²

Next we find the force on the stopper

F = (P - P•)A, where

F = 10 N

P = pressure inside the tube,

P• = 1 atm

10 = (P - 101325) * 1.767*10^-4

P - 101325 = 10/1.767*10^-4

P - 101325 = 56593

P = 56593 + 101325

P = 157918 Pascal

Now, remember, in an ideal gas,

P1V1/T1 = P2V2/T2, where V is constant, then we have

P1/T1 = P2/T2, and when we substitute the values, we have

101325/(273 + 18) = 157918/ T2

101325/291 = 157918/ T2

T2 = (157918 * 291)/101325

T2 = 453 K

T2 = 453 - 273 = 180° C

3 0
3 years ago
6A certain load and set of slings create a 20-degree angle between the load and each sling leg. Using a spreader for the same li
Otrada [13]

Solution:

The angle between the sling and the load is 20^{\circ}

So the  tension in each sling can be calculated as

Sin \theta = Mg => T = \frac{Mg}{2Sin\theta}

Sin \theta=> \frac{Mg}{2Sin 20^{\circ}}

Where    

M is the mass of the load

The Horizontal reaction on the sling will be inward.

After using the spreader, the new angle between sling and load is 60^{\circ}, the tension in the sling will be  

T= \frac{Mg}{2 Sin 60^{\circ}} = \frac{Mg}{2 Sin 20^{\circ}}

The tension will be same as before in the sling move away through the spreader at an angle more than 90 degree the horizontal force will act opposite and will be outward

5 0
3 years ago
Explain the relationship between observations and hypotheses.
dlinn [17]
<em>in Scientific method observation comes first,,,
hypothesis is a short time theory made on the basis of observation..
hypothesis depends upon observation...
you suggest any statement about the phenomenon that you felt either my your mind or senses that is hypothesis...</em>
7 0
3 years ago
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