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Nookie1986 [14]
3 years ago
7

What is the highest and lowest frequency a human being can hear​

Physics
1 answer:
nata0808 [166]3 years ago
6 0

Every person is different.  But for a planet-wide overall average that roughly represents all human beings on Earth, the figures usually used are:

from  20 Hz  to  20,000 Hz .

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Which one of the following statements concerning kinetic energy is true? a The kinetic energy of an object always has a positive
hodyreva [135]

a The kinetic energy of an object always has a positive value.

Explanation:

The kinetic energy of an object is the energy possessed by an object due to its motion, and it can be calculated as

K=\frac{1}{2}mv^2

where

m is the mass of the object

v is its speed

Let's now analyze each statement:

a The kinetic energy of an object always has a positive value. --> TRUE. In fact, the mass of the object is always positive, and the term v^2 is always positive as well, so the kinetic energy is always positive.

b The kinetic energy of an object is directly proportional to its speed. --> FALSE. Looking at the formula, we see that the kinetic energy is proportional to the square of the speed, K\propto v^2.

c The kinetic energy of an object is expressed in watts. --> FALSE. Watts is the units for measuring power, while the kinetic energy is measured in Joules, the units for the energy.

d The kinetic energy of an object is a quantitative measure of its inertia. --> FALSE. The inertia of an object depends only on its mass, not on its speed.

e The kinetic energy of an object is always equal to the object’s potential energy. --> FALSE. The potential energy depends on the altitude from the ground, not from the speed, so the two energies can be different.

Learn more about kinetic energy:

brainly.com/question/6536722

#LearnwithBrainly

8 0
3 years ago
The natural enzyme reaction in food slowly breaks it down and eventually causes it to spoil. what 2 things halt this enzyme reac
ollegr [7]

Answer: the answer is storing properly in refrigeration.

Explanation:

4 0
3 years ago
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Suppose (for this statement only), that q is moved from the origin but is still within both the surfaces. The flux through both
o-na [289]

Answer:

-True  - True  - true   - false -false - false

Explanation:

  • True The flow depends only on the charge into the surface, not on the relative position
  • True The two vectors are radial, so their relative direction  do not changes
  • True It just depends on the charge inside
  • False, it only depends on the charge, not on the form from the integration surface
  • False, because if it has a load inside it can be considered in the center, but if the load is outside the flow lines change direction with respect to the surface
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7 0
3 years ago
Mass is a measurement of
lozanna [386]
D is the amount of space object takes up
6 0
3 years ago
On James’s MP3 player, he has 12 sad songs and 40 upbeat songs that he wants to put into playlists. He wants to have the same nu
Anna [14]

Answer:

i would say a) two playlists

hope this helps!

Explanation:

4 0
3 years ago
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