Answer:
Frequency of sound wave = 198.83 hertz (Approx.)
Explanation:
Given:
Velocity of sound wave in air = 340 m/s
Wavelength = 1.71 meter
Find:
Frequency of sound wave
Computation:
Frequency = Velocity / Wavelength
Frequency of sound wave = Velocity of sound wave in air / Wavelength
Frequency of sound wave = 340 / 1.71
Frequency of sound wave = 198.8304
Frequency of sound wave = 198.83 hertz (Approx.)
~Hello there!
Your question: Which of two factors influence the weight of an object due to gravitational pull?
Your answer: The mass and the radius of the planet are the two factors that influence the weight of an object due to the gravitational pull
The answer is option A.
Any queries ^?
Happy Studying!
Answer:
<em>We need to (at least) apply a force of 9.8 N to move the block</em>
Explanation:
<u>Second Newton's Law</u>
If a net force 
different from zero is applied to an object of mass m, then it will move at an acceleration a, given by
If we apply a force F to an object placed on a rough surface, the only way to make it move is to beat the friction force which is given by
Where 
is the static friction coefficient and 
is the normal force exerted by the table to the object. Since there is no motion in the vertical direction the normal force equals the weight of the object:
The friction force is
Thus, we need to (at least) apply a force of 9.8 N to move the block
The step of the scientific method with the information "This paper details my results on how dolphins use sonar to navigate." is: D. Report Results.
Science can be defined as a branch of intellectual and practical study that systematically observes a body of fact with respect to the structure and behavior of both living and non-living organisms in the natural world through experiments.
Some of the steps (activities or actions) that a scientist performs (carries out) while using a scientific method include the following:
- Analyze data and draw conclusions.
The results of an experiment provide the necessary data and information about the specimen which was used in the course of conducting an experiment.
Hence, a report result would convey these information to the user (reader) of scientific method proposed by a scientist.
In conclusion, a paper which details the results on how dolphins use sonar to navigate is considered a report of the results.
Read more: brainly.com/question/11131733
