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Novosadov [1.4K]
3 years ago
15

What is the temperature inside of a tree?

Physics
1 answer:
Oliga [24]3 years ago
6 0
It’s 21 c it all on the weather outside but most of the time it’s on 21
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Given the wave function: Y(x,t) = 5sin27(0.2x - 3t); (x = meters, t = sec.): What are the amplitude, frequency, wavelength, angu
MariettaO [177]

Answer:

Explanation:

Y = 5 Sin27( .2x-3t)

= 5 Sin(5.4x - 81 t )

Amplitude = 5 m

Angular frequency ω = 81

frequency = ω / 2π

= 81 / (2 x 3.14 )

=12.89

Wave length λ = 2π / k ,

k = 5.4

λ = 2π / 5.4

= 1.163 m

Phase velocity =ω / k

= 81 / 5.4

15 m / s.

The wave is travelling in + ve x - direction.

3 0
3 years ago
Can kintic friction affect mechanical energy
Nesterboy [21]
Yes. Kinetic energy is a form of mechanical energy and friction will turn that kinetic energy into heat.
3 0
3 years ago
What is the difference between elastic PE and gravitational PE?
asambeis [7]
Elastic potential energy is kind of like pulling on something and then letting it go, with rubber bands, or a bow, or a slingshot, something with elastic properties.
Gravitational potential energy has to do with how high something is, and has to do with earth’s gravitational pull.
7 0
3 years ago
Read 2 more answers
Pleaseeeee HELPPPP THIS IS TIMED ALSO,
TEA [102]

Answer:

Friction, normal force, and weight

Explanation:

If the book slows down, it means that there must be friction acting in the opposite direction of the direction the book is moving in.

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Note that weight and normal force is not the 3rd law action-reaction pair. The pair is the force of the book on the table and the force of the table on the book.

8 0
2 years ago
Why are the very first stars thought to have been much more massive than the sun? (a the clouds that made them were much more ma
pashok25 [27]
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8 0
2 years ago
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