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3 years ago

Explain the arguments for and against the theory that animals have the capacity for language, like humans.

Physics

1 answer:

joja [24]3 years ago

3 0

Answer:

Used to describe a language with units (such as sentences or ... But in theory, because units of human language have the ability to be ... This is obviously a useful trait

Explanation:

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A block is given a very brief push up a 20.0 degree frictionless incline to give it an initial speed of 12.0 m/s.(a) How far alo

Orlov [11]

Explanation:

(a) Net force acting on the block is as follows.

$F_{net} = -mg Sin (\theta)$

or, ma = -mg Sin (\theta)[/tex]

a = $-g Sin (\theta)$

= $-9.8 \times Sin (20^{o})$

= -3.35 $m/s^{2}$

According to the kinematic equation of motion,

$v^{2} - v^{2}_{o} = 2as$

Distance traveled by the block before stopping is as follows.

s = $\frac{v^{2} - v^{2}_{o}}{2a}$

= $\frac{(0)^{2} - (12.0)^{2}_{o}}{2 \times -3.35}$

= 21.5 m

According to the kinematic equation of motion,

v = $v_{o} + at$

0 = $12.0 m/s + \frac{1}{2} \times -3.35 m/s^{2} \times t$

$t_{1}$ = 7.16 sec

Therefore, before coming to rest the surface of the plane will slide the box till 7.16 sec.

(b) When the block is moving down the inline then net force acting on the block is as follows.

$F_{net} = -mg Sin (\theta)$

ma = $mg Sin (\theta)$

a = $g Sin (\theta)$

= $9.8 m/s^{2} \times Sin (20^{o})$

= 3.35 $m/s^{2}$

Kinematics equation of the motion is as follows.

s = $v_{o}t + \frac{1}{2}at^{2}$

21.5 m = $0 + \frac{1}{2} \times 3.35 m/s^{2} \times t^{2}$

$t_{2}$ = $\sqrt{\frac{2 \times 21.5 m}{3.35 m/s^{2}}}$

= 3.58 sec

Hence, total time taken by the block to return to its starting position is as follows.

t = $t_{1} + t_{2}$

= 7.16 sec + 3.58 sec

= 10.7 sec

Thus, we can conclude that 10.7 sec time it take to return to its starting position.

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4 years ago

include at least five action items that you and your family will do to conserve energy. PLEASE I NEED HELP! THIS QUESTION IS WOR

wariber [46]

Taking shorter showers, turning off the lights when you aren't in a room, use energy efficient lightbulbs like LED's, use the air conditioning only when you really need it, and use the heat less in the winter.

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3 years ago

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A physicist found that a force of 0.68 N was measured between two charged spheres. The distance between the spheres was 1.0m. Ca

amid [387]

The answer would be 0.40m. you are finding how far the distance is between 10 and 50

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3 years ago

Please answer this question asap

ICE Princess25 [194]

Answer:

The magnetic compass shows no deflection.

Explanation:

When a magnetic compass is placed on a current-carrying conductor, the compass needle shows deflection.
When the direction of the current is reversed, the needle deflects in the opposite direction.
This is due to the fact that the current-carrying conductor generates a magnetic field around it.
If the direction of the current is reversed, the magnetic polarization changes.
This phenomenon was first noticed by Oersted, and later it helped to develop electromagnetism.

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4 years ago

What happens when an ice cube melts in a glass of water?

Aleksandr [31]

Answer:

Explanation:

Heat travels from hot to cold.

So that would be C

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3 years ago

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