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dexar [7]
3 years ago
13

Jamie hears a high-pitched sound that then changes to a low-pitched sound. What is most likely occurring?

Physics
2 answers:
bulgar [2K]3 years ago
8 0

Answer: The answer is B, The Doppler Effect

Explanation:

netineya [11]3 years ago
3 0
 Below are the choices that can be found from other source:

a. frequency
b. the Doppler effect
c. the resonance effect
<span>d. intensity

The answer is B. 

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.
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A 100 kg bag of sand has a weight on 100 N. When dropped its acceleration is what?
Anettt [7]

Answer:

The acceleration of the bag of sand is 1\ m/s^2.

Explanation:

We have,

Mass of a bag of sand is 100 kg

Weight of the bag of sand is 100 N

It is required to find the acceleration of the bag when it is dropped. The weight of an object is given by :

F =ma

When it is dropped, a = g

g=\dfrac{F}{m}\\\\g=\dfrac{100}{100}\\\\g=1\ m/s^2

So, the acceleration of the bag of sand is 1\ m/s^2.

4 0
3 years ago
An object in circular motion has velocity that is constantly changing. The direction of the acceleration is
Keith_Richards [23]
<h2>Answer: Toward the center of the circle.</h2>

This situation is characteristic of the uniform circular motion , in which the movement of a body describes a circumference of a given radius with constant speed.  

However, in this movement the velocity has a constant magnitude, but its direction varies continuously.

Let's say \vec{V} is the velocity vector, whose direction is perpendicular to the radius r of the trajectory, therefore   the acceleration \vec{a} is directed toward the center of the circumference.

 

7 0
3 years ago
State a situation in which force is applied on a body, but no work is done​
LenaWriter [7]
If you press on your arm force is applied work done is if it moves.
One answer could be if I was to press my hand on a table.
Have a great day!
8 0
3 years ago
Read 2 more answers
Among the elements potassium, lithium, and iron, the metallic bonds are likely to be strongest in
Mrac [35]

彼が好きな男のような話は妻と関係があったのでそう

Explanation:これが難しい場合はコメントで教えてくださいが何でも

lol okay

from: a random person :)

4 0
3 years ago
Difference between static and kinetic friction in physics
KIM [24]
The force of static friction keeps a stationary object at rest. Once the force of static friction is overcome, the force of kinetic friction is what slows down a moving object.
4 0
3 years ago
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