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morpeh [17]
3 years ago
5

Q: The acceleration of gravity means that for each second that passes, falling objects move 9.8m? A:True

Physics
2 answers:
inessss [21]3 years ago
7 0

Answer:

False

Explanation:

If the object covers 9.8 m every second then it has a constant velocity of 9.8 m/s

The acceleration implies that there is a change in velocity. With a constant acceleration the velocity will change linearly.

S = ut + \frac{1}{2} gt^2

The distance traveled each second will not be a constant, it will be a quadratic function as mentioned above.

Gelneren [198K]3 years ago
4 0

Answer: false

Explanation:

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A simple harmonic wave of wavelength 18.7 cm and amplitude 2.34 cm is propagating along a string in the negative x-direction at
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Answer

given,

wavelength = λ = 18.7 cm

                    = 0.187 m

amplitude , A = 2.34 cm

v = 0.38 m/s

A)  angular frequency = ?

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     f = \dfrac{0.38}{0.187}

     f =2.03\ Hz

angular frequency ,

ω = 2π f

ω = 2π x 2.03

ω = 12.75 rad/s

B) the wave number ,

      K = \dfrac{2\pi}{\lambda}

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C)

as the wave is propagating in -x direction, the sign is positive between x and t

y ( x ,t) = A sin(k  x - ω t)

y ( x ,t) = 2.34  x  sin(33.59 x - 12.75 t)

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3 years ago
Light is incident on a piece of glass in air at an angle of 33 degrees from the normal. If the index of refraction of the glass
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About 21 to 22 degrees 

as below

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1. As a person stands on earth they put a force on the ground and the ground puts a force on them.
Scorpion4ik [409]

Answer:

mb

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Define oxidation number
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<span>a number assigned to an element in a chemical combo that represents the number of electrons lost or gained by atom of the element in the compound.</span>

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An object starts from rest, and accelerates at 2m/s2 for 10s. How far has it gone in that time
blagie [28]

Answer:

100m

Explanation:

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