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ddd [48]
3 years ago
12

Nico vibrates an object at different frequencies. At a certain frequency, the sound gets louder and then returns to the same vol

ume when he moves to the next frequency.
What is occurring when the sound gets louder?

The natural frequency of the object is changing.
The amplitude of the wave is doubling.
A standing wave is being generated.
Pitch is producing the louder sound.
Physics
2 answers:
Leni [432]3 years ago
7 0

Answer: c

Explanation: I passed the test and got this answer right

Ilia_Sergeevich [38]3 years ago
3 0

Answer: c

Explanation:

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If State A is heated, which of the other two states would it more closely resemble? Explain.
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Well if its a solid that your heating up then it would closely resemble a liquid and a gas. would be able to give a better answer if you provided more information
6 0
3 years ago
an object has 5.00 kg*m/s of momentum. if you double the mass and double the velocity, how much momentum would it have PLEASE HE
KIM [24]

The final momentum is 20.00 kg*m/s

Explanation:

The momentum of an object is given by:

p=mv

where

m is the mass of the object

v is its velocity

For the object in the problem, the initial momentum is

p=mv=5.00 kg m/s

Then, the mass is doubled:

m' = 2m

And the velocity is also doubled:

v' = 2v

So, the new momentum will be:

p'=m'v'=(2m)(2v)=4(mv) = 4p = 4(5.00)=20 kg m/s

So, the final momentum is 4 times the initial momentum.

Learn more about momentum:

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6 0
4 years ago
In physical science lab, Ben and Jerry added small pieces of magnesium to hydrochloric acid. They noticed that bubbles formed, t
svetoff [14.1K]
The signs of a chemical reaction are bubbles, heat an magnesium disappearing.
6 0
4 years ago
Two iron weights, one twice the mass of the other, are dropped from the top of a building. Compared with the lighter weight, the
likoan [24]
If we neglet air resistance for both objects then both will fall parallely(at same time) because time taken by both objects is independent of mass. there is famous experiment i.e"feather coin experiment" . normally we think that heaver objects falls faster but this is wrong concept. it depends on medium in which objects are moving.
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8 0
4 years ago
Read 2 more answers
A moving walkway at an airport has a speed v1 and a length L. A woman stands on the walkway as it moves from one end to the othe
bearhunter [10]

Answer:

t=L/V_1

Explanation:

<u>solution:</u>

Let E be an observer, and B a second observer traveling with velocity V_{BE}  as measured by E. If E measures the velocity of an object A as V_{AE}  then B will measure A velocity as

V_{AB} = V_{AE} -  V_{BE}  

Applied here,

the walkway (W) and the man (M) are moving relative to Earth (E}, the velocity of the man relative to the moving walkway is

V_{MW} = V_{ME} -  V_{WE}  

V_1=V_{WE},

V_2=V_{MW}

The time required for the woman, traveling at constant speed V_1 relative to the ground, to travel distance L relative to the ground is :

t=L/V_1

 

3 0
4 years ago
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