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vodomira [7]
4 years ago
14

How is resonance used in musical instruments?

Physics
2 answers:
Nezavi [6.7K]4 years ago
8 0
B. To amplify sound
9966 [12]4 years ago
7 0

Answer:

The answer is B: to Amplify the sound

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What is the acceleration of a 3 kilogram object if a force of 36 Newtons is applied to it
FromTheMoon [43]
Force = Mass x Acceleration -> Acceleration = Force/Mass:
36N/3kg = 12 m/s^2
4 0
4 years ago
In dealing with every task assigned, why is planning important for a student?
Jet001 [13]

Answer:

Having a planner gives students freedom to plan, organize and keep track of their work to the best of their abilities and requirements. This has a dual benefit in that it increases the student's accountability to the commitments planned as well as provides them with a structure that contributes to their success.

Explanation:

3 0
3 years ago
A home gets its water from the public supply. Which of the following would be the best way for the homeowner to obtain a water-q
diamong [38]
The correct option is C. 
Since the home gets its water from public supply, the best place to get the water quality report is from the local water treatment facility who processed the water. Water quality report is a document which summarizes information about the water sources that are used, detected contaminants, compliance observed, etc.
6 0
4 years ago
Read 2 more answers
Determine the value of n so that the vectors A and B are perpendicular: Ā = î + 5j + nk and B = 2î - j + k
Tanya [424]

If \vec A and \vec B are perpendicular, then their dot product is zero. This means

\vec A \cdot \vec B = (\vec\imath + 5\,\vec\jmath + n\,\vec k) \cdot (2\,\vec\imath - \vec\jmath + \vec k) = 2 - 5 + n = 0

Solving for n is trivial; it follows that n = 3.

6 0
2 years ago
Two identical cars are driving in opposite directions at the same speed. Their kinetic energies have _______________.
Viktor [21]

Answer: The right answer is c.

Explanation:

The kinetic energy is defined as follows:

K = 1/2 mv²

If both cars are identical, this means that they have the same mass.

Also, we are told that the speed is also the same for both cars.

If they are going in opposite directions, their velocities have the same magnitude, but opposite signs.

But even though they have different signs, the square (which is the parameter relevant for kinetic energy calculations), is always positive, as any number, elevated to an even power, is positive.

So, we conclude that both cars have the same kinetic energy, in magnitude and in sign.

7 0
4 years ago
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