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crimeas [40]
3 years ago
8

PLS PLS HELP FOR BRAINLIEST!!!!!!!!!!!!

Physics
2 answers:
Phantasy [73]3 years ago
5 0

Option A: The air molecule moves from the girl's mouth to the ear of her friend

Zigmanuir [339]3 years ago
4 0
The answer is the first one, hope this helps
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What happen as waves travel and objects in their path move?
Cerrena [4.2K]
Do you mean when objects move as a direct result of the passing wave? Waves have energy and constitute a force, just like wind. Therefore that force is able to move objects in its path.

3 0
3 years ago
near the surface of the earth, objects in free fall (but not terminal velocity) experience a. constant distance. b. constant acc
Alenkasestr [34]
<h3><u>Answer;</u></h3>

B. constant acceleration.

<h3><u>Explanation</u>;</h3>
  • Free fall is the type of motion of a body or an object when only gravity is acting on it.
  • <em><u>All objects undergo free fall on the earth surface at the same rate irrespective of their mass. This is because the gravitational field on the surface of the earth 9.8 N/kg, causes and acceleration equivalent to 9.8 m/s/s of any object in free fall motion.</u></em>
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3 0
3 years ago
Read 2 more answers
A ladybug sits at the outer edge of a turntable, and a gentleman bug sits halfway between her and the axis of rotation. The turn
Cerrena [4.2K]

Answer:

e. Not enough information to determine

Explanation:

This question is incomplete. Here is the complete question with my solution afterwards;

A ladybug sits at the outer edge of a turntable, and a gentleman bug sits halfway between her and the axis of rotation. The turntable (initially at rest) begins to rotate with its rate of rotation constantly increasing.

What is the first event that will occur?(Assume non-zero frictional force and the same coefficients of friction for both bugs.)

a. The ladybug begins to slide

b. The gentleman bug begins to slide

c. Both bugs begin to slide at the same time

d. Nothing ever happens

e. Not enough information to determine

The centripetal force acting on a rotating body or bugs can be written as,

F=mrw^2

m= mass of the corresponding bugs

r= corresponding radial distance of each bug

w= angular speed of the turntable

The centripetal force tries to slide the bugs in an outward direction and it is directly proportional to the products of its mass and radial distance from the axis of rotation of the turntable

F ∝ mr

Since the radial distance from the axis of rotation of the turntable for each bug is given, but the mass is not given, the given information is therefore not enough to determine which bugs will slide first.

Option "e" is correct.

7 0
3 years ago
Read 2 more answers
How are credit unions different from banks?
aleksandrvk [35]
Answer: B ≈ Credit unions are owned by stockholders rather than partners
7 0
3 years ago
If the line spectrum of lithium has a red line at 670.8 nm. How much energy does a a photon with this wavelength have?
Colt1911 [192]
We already know the formula for finding the energy of a photon with this wavelength as:
<span>E = ħc / λ
</span>The information's that we already know are:
h = Plancks constant
   = <span>6.626x10^-34 Js
c = light speed
   = </span><span> 2.999x10^8 m/s
</span><span>λ = Wavelength of the light as given in the question
</span>   = <span>670.8x10^-9 m
E = amount of energy
Then
E = (</span>6.626x10^-34) * (2.999x10^8)/ (<span>670.8x10^-9)
    = </span><span>2.962x10^-19 J</span>
5 0
3 years ago
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